Furnish & Install Emergency Generator for the Botanical Garden (Bldg. No. 2461)
INDEX TO SPECIFICATIONS
Table of Contents
SECTION
NUMBER
TITLE
PAGES
General Specifications
01010
01300
01700
Summary of Work
Submittals
Contract Closeout
1
4
2
Technical Specifications
Electrical Specifications
16010
16110
16123
16130
16170
16190
16195
16310
16400
PPD NO. 1214556
Electrical General Provisions
Raceways
Building Wire & Cable
Boxes
Grounding & Bonding
Supporting Devices
Electrical Identification
Generators
Distribution Equipment
7
4
4
3
3
3
3
15
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Summary of Work
Section 01010
SECTION 01010
SUMMARY OF WORK
1
GENERAL
1.1 SCOPE OF WORK
A. Work shall include all labor, materials, and equipment to install a new emergency
generator set at the Botanical Garden Horticulture Green House (Bldg. No. 2461)
for the University of Georgia, Athens, GA, in accordance with specifications and
accompanying drawings.
B. Contractor shall perform all requisite cutting and patching of existing surfaces and
building components to install required systems under this Contract. All work
shall match existing conditions.
1.2
ALTERNATE BIDS
A.
There are no alternate bids for this contract.
END OF SECTION
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SUBMITTALS
SECTION 01300
SECTION 01300
SUBMITTALS
1 GENERAL
A.
SECTION INCLUDES
1.
2.
3.
4.
5.
6.
7.
8.
B.
Submittal procedures.
Construction progress schedules.
Proposed Products list.
Shop Drawings.
Product Data.
Samples.
Manufacturer's installation instructions.
Manufacturers' certificates.
RELATED SECTIONS
Section 01700 - Contract Closeout: Contract warranties, bonds, manufacturers'
certificates, and closeout submittals.
C.
SUBMITTAL PROCEDURES
1.
Transmit each submittal with a transmittal form.
2.
Sequentially number the transmittal form. Revise submittals with original
number and a sequential alphabetic suffix.
3.
Identify Project, Contractor, Subcontractor, or supplier; pertinent drawing and
detail number, and specification section number, as appropriate.
4.
Apply Contractor's stamp, signed or initialed certifying that review, verification
of Products required, field dimensions, adjacent construction Work, and
coordination of information, is in accordance with the requirements of the
Work and Contract Documents.
5.
Schedule submittals to expedite the Project, and deliver to Design
Professional at the University of Georgia, Physical Plant Division.
Coordinate submission of related items.
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SUBMITTALS
SECTION 01300
6.
For each submittal for review, allow 10 working days excluding delivery time
to and from the contractor.
7.
Identify variations from Contract Documents and Product or system
limitations which may be detrimental to successful performance of the
completed Work.
8.
Provide space for Contractor and Design Professional review stamps.
9.
Revise and resubmit, identify all changes made since previous submission.
10. Distribute copies of reviewed submittals as appropriate. Instruct parties to
promptly report any inability to comply with provisions.
11. Submittals not requested will not be recognized or processed.
D.
E.
CONSTRUCTION PROGRESS SCHEDULES
1.
Submit initial schedule in duplicate within 15 days after date established in
Notice to Proceed.
2.
Revise and resubmit as required.
3.
Submit revised schedules with each application for payment, identifying
changes since previous version.
4.
Submit a computer generated horizontal bar chart with separate line for each
section of Work, identifying first work day of each week.
PROPOSED PRODUCTS LIST
1.
Within 15 working days after date of Notice to Proceed, submit list of major
products proposed for use, with name of manufacturer, trade name, and
model number of each product.
2.
For products specified only by reference standards, give manufacturer, trade
name, model or catalog designation, and reference standards.
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SUBMITTALS
SECTION 01300
F.
SHOP DRAWINGS
1. Submit the number of opaque reproductions which Contractor requires, plus
two copies which will be retained by Design Professional.
2. Standard Detail Drawings: Submit manufacturer's standard details for
review. After review, produce copies and distribute in accordance with the
SUBMITTAL PROCEDURES article above and for record documents
purposes described in Section 01700 - CONTRACT CLOSEOUT.
G.
PRODUCT DATA
1. Submit the number of copies which the Contractor requires, plus two copies
which will be retained by the Design Professional.
2. Mark each copy to identify applicable products, models, options, and other
data. Supplement manufacturers' standard data to provide information
unique to this Project.
3. After review distribute in accordance with the Submittal Procedures article
above and provide copies for record documents described in Section 01700 CONTRACT CLOSEOUT.
H.
SAMPLES
1. Submit samples to illustrate functional and aesthetic characteristics of the
Product, with integral parts and attachment devices. Coordinate sample
submittals for interfacing work.
2. Submit samples of finishes from the full range of manufacturers' standard
colors, textures, and patterns for Design Professional selection.
3. Include identification on each sample, with full Project information.
4. Submit the number of samples specified in individual specification sections;
one of which will be retained by Design Professional.
5. Reviewed samples which may be used in the Work are indicated in individual
specification sections.
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SUBMITTALS
SECTION 01300
I.
MANUFACTURER INSTALLATION INSTRUCTIONS
1. When specified in individual specification sections, submit printed
instructions for delivery, storage, assembly, installation, start-up, adjusting,
and finishing, to Design Professional in quantities specified for Product Data.
2. Indicate special procedures, perimeter conditions requiring special attention,
and special environmental criteria required for application or installation.
J.
MANUFACTURER CERTIFICATES
1. When specified in individual specification sections, submit certification by
manufacturer to Design Professional, in quantities specified for Product Data.
Indicate material or Product conforms to or exceeds specified requirements.
2. Submit supporting reference data, affidavits, and certifications as
appropriate.
3. Certificates may be recent or previous test results on material or Product, but
must be acceptable to Design Professional.
K.
PRODUCTS
Not Used.
L.
EXECUTION
Not Used.
END OF SECTION
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CONTRACT CLOSEOUT
SECTION 01700
SECTION 01700
CONTRACT CLOSEOUT
1
GENERAL
1.1
SECTION INCLUDES
A.
B.
C.
D.
1.2
1.3
FINAL CLEANING
A.
Execute final cleaning prior to final project assessment.
B.
Clean exterior glass and surfaces stained during work under
this contract.
C.
Remove waste and surplus materials,
construction facilities from the site.
rubbish,
and
ADJUSTING
A.
1.4
Final Cleaning
Adjusting
Project Record Documents
Warranties
Adjust operating products and equipment to ensure smooth
and unhindered operation.
PROJECT RECORD DOCUMENTS
A.
Maintain on site, one set of the following record documents;
record actual revisions to the Work:
1.
2.
3.
4.
5.
B.
Specifications
Addenda
Change Orders and other modifications to the
Contract
Reviewed Shop Drawings, Product Data, and
Samples
Manufacturer’s instruction for assembly, installation,
and adjusting
Ensure entries are complete and accurate, enabling future
reference by Owner.
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CONTRACT CLOSEOUT
SECTION 01700
C.
Store record documents separate from documents used for
construction.
D.
Record information concurrent with construction progress.
E.
Specifications: Legibly mark and record at each Product
section description of actual Products installed, including the
following:
1.
2.
3.
F.
Record Documents and Shop Drawings: Legibly mark each
item to record actual construction including:
1.
1.5
2
Manufacturer’s name and product model and number
Product substitutions or alternates utilized
Changes made by Addenda and modifications
Details not on original Contract drawings
WARRANTIES
A.
Execute and assemble transferable warranty document from
Subcontractors, suppliers, and manufacturers.
B.
Submit prior to final Application for Payment.
PRODUCTS
Not Used.
3
EXECUTION
Not Used.
END OF SECTION
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ELECTRICAL GENERAL PROVISIONS
Section 16010
SECTION 16010
ELECTRICAL GENERAL PROVISIONS
1
GENERAL
1.1
RELATED DOCUMENTS:
A. All general provisions of Contract, Drawings and specifications sections, apply to
work of this section.
1.2
QUALITY CRITERIA:
A. The requirements of this Section apply to all Sections of Division 16 and to other
Divisions of Work when referenced to Division 16.
1.3
SPECIAL REQUIREMENTS:
A. Completeness of work: Provide all wiring, connections and miscellaneous
accessories necessary for the complete installation of and final connections to
equipment furnished. Make all final connections to such, including installation of
all special devices furnished with such equipment, and furnish all material
necessary that is not supplied with the special equipment.
B. Provide access to equipment and apparatus requiring operation, service or
maintenance within the life of the system.
C. Drawings indicate locations of fixtures, apparatus, equipment and raceways and
while these are to be followed as closely as possible, if it is necessary to change
the location of same prior to initial installation to accommodate building
conditions, make changes without additional cost to the Owner.
D. Locations of equipment and apparatus as indicated on the Drawings, if any, are
approximate; connections shall be made to such equipment as actually installed.
1.4
CODES AND STANDARDS:
A. Materials specified by reference to a specific standard such as the American
Society of Testing Materials, Underwriters' Laboratories, American National
Standards Institute, Federal Specifications, a trade association standard, or other
similar standard shall comply with the requirements in the latest revision thereof,
in effect at the time of bidding, except as limited by type, class or grade, or
modified in such reference.
B. UL listed Products: Provide all materials, equipment, and apparatus with
Underwriters' label for all items where such labels are available. Items which are
not Underwriter' labeled will not be acceptable if labeled equipment can be
obtained from approved manufacturer.
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ELECTRICAL GENERAL PROVISIONS
Section 16010
C. Code Compliance: The work under this Division shall comply with the latest
edition of the following standards and codes:
Federal Occupation Safety and Health Act
National Fire Protection Association Publication Number 70 (National Electrical
Code)
National Fire Protection Association Publication Number 72E (Proprietary
Protective Signaling Systems)
National Fire Protection Association Publication Number 78 (Lightning Protection
Code)
National Fire Protection Association Publication Number 101 (Life Safety Code)
Americans with Disabilities Act (ADA)
National Fire Protection Association Publication Number 110 (Emergency and
Standby Power Systems)
All applicable local codes
1.5
SPECIFICATIONS AND DRAWINGS:
A. Provide - As used herein shall mean "furnish, install, and connect complete."
B. Wiring - As used herein shall mean "wire or cable, installed in raceway with all
required boxes, fittings, connectors, and accessories, completely installed.
C. Work - As used herein shall be understood to mean the materials completely
installed, including the labor involved.
D. The drawings, if any, show the approximate location of apparatus. Do not scale
the drawings to determine exact positions and clearances. Obtain from the field
any necessary dimensions not shown.
Notify the Owner immediately of any changes in the size or location of the
material or equipment which may be necessary in order to meet field conditions,
or in order to avoid conflict with other equipment. Obtain the Owner's approval
before such deviations are made.
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ELECTRICAL GENERAL PROVISIONS
Section 16010
1.6
RECORD DRAWINGS:
A. Upon completion of the Project, the Contractor shall submit a complete set of
Mylar reproducible indicating as-built conditions of all electrical equipment,
apparatus, and raceways, and incorporating changes made during construction.
B. A record of as-built conditions shall be kept throughout the Project and shall be
used in the preparation of the final record drawings.
1.7
CONTINUITY OF SERVICES:
A. Obtain approval from the Owner at least 7 days prior to any utility interruption or
system outage unless otherwise stated on the drawings.
B. Perform work at such time and in such manner as to cause minimum
inconvenience to the Owner and only as approved by the Owner. No allowance
will be made for lack of knowledge of existing conditions.
1.8
SYSTEM CHARACTERISTICS:
A. Electric distribution is 12,400/7,200 volts, 3 phase, 4 wire, solidly ground.
1.9
WORKING HOURS:
A. Figure labor costs based on all work being done during normal working hours,
except as specifically called for by the Owner.
1.10
SHOP DRAWINGS:
A. Mark shop drawings indicating the particular make, model number, accessories,
options, and specification paragraph numbers.
B. Submit shop drawings as described in Section 16124.1.4.
1.11
MAINTENANCE DATA:
A. Submit three manuals in hardback three ring loose leaf binders, covering details
of operation and maintenance for all apparatus requiring service including:
Title page with job name, Contractor's name, addresses and telephone numbers.
Index sheet
Manufacturers' operating and maintenance manuals, including parts lists, for
each piece of equipment or device and accessory requiring service or
maintenance, the guarantee period and the name, address and phone number of
the nearest sales and service organization for each item.
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ELECTRICAL GENERAL PROVISIONS
Section 16010
Copies of approved shop drawings
Complete description of functions and operations of each piece of equipment
including description of how equipment operates. Instructions for cleaning,
lubricating, routine inspections, tests, and similar maintenance procedures.
Step-by-step procedures for starting, stopping, and operating each system.
Copies of inspection certificates provided by the authority having jurisdiction.
Approved start and completion guarantee dates.
B. All contents shall be typewritten.
2
PRODUCTS
2.1
EQUIPMENT AND INSTALLATION REQUIREMENTS:
A. Each piece of apparatus shall be of the customary standard and quality furnished
by the designated manufacturer for that catalog number.
B. All electrical materials shall be new and listed by the Underwriters' Laboratories,
Inc., shall meet their requirements, and shall bear their label wherever standards
have been established and label service is regularly furnished by this agency.
C. Where standards have not been established by the Underwriters' Laboratories
and label service or certification service is not available, the manufacturer shall
certify that the material has been manufactured, assembled, and tested in
accordance with the applicable standards specified.
D. Except where specific instructions are included herein, materials shall be
installed in accordance with the manufacturer's written instructions and
recommendations.
2.2
SUBSTITUTIONS:
A. Catalog numbers and trade names in these specifications and noted on the
Drawings or Specifications are intended to describe the material, devices, or
apparatus wanted. In case of single-name specifications, similar materials of
other manufacturers, when in the opinion of the Owner are of equal quality,
capacity and character may be submitted for approval. Materials submitted for
prior approval shall have the Contractor's stamp affixed on it.
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ELECTRICAL GENERAL PROVISIONS
Section 16010
2.3
SLEEVES AND CORES:
A. Where specified or required, sleeves shall be standard weight steel conduit
except sleeves for concealed conduit through floors not in structural members,
and through interior drywall construction may be 26 gauge galvanized sheet
metal.
B. Conduits penetrating walls below grade shall be sealed with a waterproof,
modular, mechanical expansion seal consisting of interlocking synthetic rubber
links shaped to continuously fill the annular space between the pipe and wall
opening.
C. When pouring concrete on slabs above grade, plastic core form block-outs may
be used to form sleeve openings. When block outs are removed, the metal
sleeves shall be installed.
D. Sleeves and other openings through fire-rated floors and partitions shall be
sealed after installation of conduits, cables, etc., in a manner to maintain the fire
rating of the separation.
E. Fire retardant shall be UL classified in accordance with ASTM E814-1983 (UL
1479). Acceptable products are General Electric RTV Silicone Foam, Thomas
and Betts Flamesafe, 3M Company 303 Fire Barrier, or Flammadur E473.
Forming and backing material installed with the sealant shall be bulk ceramic
fiber or rigid fiberboard rated for 2300 °F, except the Dow ethylfoam board shall
be used for forming and backing material with Flammadur E473.
3
EXECUTION
3.1
PROTECTION OF WORK DURING CONSTRUCTION:
A. Provide protective covers, skids, plugs or caps to protect equipment and
materials from damage and deterioration during construction.
B. Store equipment and material under cover, and off the ground or floors exposed
to rain.
C. For outdoor storage, protective covers of 10 mil thick black sheet plastic shall be
fitted. Covers shall be reinforced to withstand wind and precipitation. Set
equipment and material on skids or platforms of height to avoid deterioration
from splattering and ground water.
D. Provide dust and debris protection for all equipment operated during
construction.
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ELECTRICAL GENERAL PROVISIONS
Section 16010
E. Protect all equipment against theft and vandalism prior to turnover to Owner.
3.2
CLEANING:
A. Remove all stickers, rust, stains, labels, and temporary covers before final
acceptance.
B. Foreign matter shall be blown, vacuumed, flushed, or cleaned out of and from
equipment, raceways, devices, controls and enclosures.
C. Clean and polish identification plates.
3.3
EQUIPMENT AND INSTALLATION REQUIREMENTS:
A. Do all cutting and repairing of walls, floors, and ceilings, including finishes,
necessary for the installation of the electrical work.
B. Exterior building walls below grade shall not be pierced by hanger bolts.
C. All equipment shall be installed and connected as specified and indicated in
accordance with the manufacturer's instructions and recommendations. Furnish
and install all electrical connections and similar items recommended by the
manufacturer for proper operation.
D. Equipment operated prior to date of substantial completion shall be maintained in
strict accordance with manufacturer's recommendations.
3.4
INSTRUCTION OF OPERATING PERSONNEL:
A. Arrange formal instruction sessions, not less than 1 working day duration, for the
Owner's operating personnel, covering:
General familiarization and operating procedures for the entire installation.
3.5
PAINTING:
A. Walls, ceilings, and floors requiring cutting or patching shall be painted after
repairs to match existing finishes.
B. Finishes of factory painted apparatus shall be touched up where finish is marred
in installation.
C. Where galvanizing is broken during fabrication or installation, recoat exposed
areas with cold galvanizing compound.
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ELECTRICAL GENERAL PROVISIONS
Section 16010
D. Conduits, raceways, boxes and supports exposed to open view, without
removing ceilings or access panels, shall be painted 2 coats of rust preventive
paint to match adjacent wall or ceiling finishes.
3.6
COORDINATION:
A. Provide offsets, transitions, and fittings as required to coordinate the installation
with existing conditions.
3.7
TESTING:
A. At the final inspection of the work, a thorough test shall be made in the presence
of the Owner or his representative and the entire installation shall be shown to be
in perfect working condition.
B. Field testing shall be performed as specified in Section 16124.3.2.
3.8
EXAMINATION OF EXISTING CONDITIONS:
A. Visit and examine carefully those portions of the site and/or present buildings
affected by this work and to become familiar with existing conditions and
difficulties that will attend the execution of the work, before submitting proposals.
B. Submission of a proposal will be construed as evidence that such examination
has been made and later claims for labor, equipment, or materials required
because of difficulties encountered, which could have been foreseen had such
examination been made, will not be recognized.
END OF SECTION
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RACEWAYS
Section 16110
SECTION 16110
RACEWAYS
1
GENERAL
1.1
RELATED DOCUMENTS:
A. Work in this Section consists of the installation of raceways and is part of each
Division 16 Section referring to raceways specified herein.
1.2
SCOPE OF WORK:
A. Install all wiring and cables in raceways unless otherwise specified.
B. Route raceways exposed, or concealed in ceilings, walls, below floors or
underground, as hereinafter specified and indicated by symbols on the Drawings.
C. Each length of conduit shall bear the manufacturer's trademark or stamp.
D. The plans indicate the general location of outlet boxes and raceways. Conduit
runs may be modified at the time of installation to adapt to building conditions.
E. Types of raceways in this Section include the following:
Electric Metallic Tubing (EMT)
Flexible Metal Conduit
Rigid Metal Conduit
Surface Metal Raceway
1.3
SYMBOLS:
A. Provide conduit sizes in accordance with the National Electrical Code; minimum
size of conduits in framed walls or in accessible ceiling spaces shall be 1/2";
minimum size of conduit concealed in floor slabs, in grade, or cast-in-concrete,
shall be 3/4"; minimum size of flexible conduit shall be 1/2".
2
PRODUCTS
2.1
ELECTRICAL METALLIC TUBING:
A. Electric metallic tubing shall be electro or hot-dipped galvanized steel and
approved only for the following applications unless otherwise specified:
Concealed in columns, chases, walls, and suspended ceiling spaces.
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RACEWAYS
Section 16110
Exposed raceways in unfinished areas, not subject to physical damage.
Connectors and couplings shall be malleable iron or steel, galvanized or
cadmium plated compression type with insulated throats and code approved for
each application.
B. Acceptable Manufacturers:
Allied Tube & Conduit Corporation
Efcor, Inc.
Georgia Tubing Corporation
Republic Steel Corporation
Wheatland Tube Company
2.2
FLEXIBLE METAL CONDUIT:
A. Flexible metal conduit shall be galvanized steel and used for final connections to
all vibrating equipment, lighting fixtures and where shown on the plans.
Where conduit must be fished through existing chases or wall cavities.
B. Use weather proof flexible conduit outside.
C. Acceptable Manufacturers:
Alflex Corporation
American Flexible Conduit Company
Cerro Wire & Cable Corporation
Steelflex Electro Corporation
2.3
RIGID METAL CONDUIT:
A. Rigid metal conduit shall be hot-dipped galvanized steel and is approved for all
applications unless otherwise specified.
B. Connectors and couplings shall be threaded galvanized malleable iron and steel.
C. Locknuts shall be of the type with sharp edges that will bite into enclosure where
connected.
D. Bushings shall be brown or black, of the high temperature type.
E. Acceptable Manufacturers:
Allied Tube & Conduit Corporation
Efcor, Inc.
Triangle PWC, Inc.
Wheatland Tube Company
F. Rigid metal conduit shall be used as follows:
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RACEWAYS
Section 16110
Where no other conduit is allowed to be used
In grade below slab
In slab on grade
2.4
SURFACE METAL RACEWAY:
A. Surface Metal Raceway shall consist of base and cover sections, completely
factory assembled and painted with a baked enamel finish suitable for overpainting at the jobsite.
B. The manufacturer shall also offer a complete line of matching fittings, boxes,
adapters, etc. for use with the raceway.
C. The raceway and all associated boxes and fittings shall meet the requirements of
NEC article 352A and shall be U.L. listed per UL-5.
D. The raceway and fittings shall be Wiremold 500 or 700 series or as indicated on
the drawings. Cable capacity of raceway shall be field coordinated with quantity
and size of cables being installed.
E. Surface Metal Raceway and matching boxes shall be used for all interior
raceway installations exposed to open view in all corridors, offices, instructional
areas, restrooms, and other similar public areas. Surface Metal Raceway shall
not be used in exposed areas such as mechanical rooms, electrical rooms, and
machine rooms.
3
EXECUTION
3.1
RACEWAY INSTALLATION:
A. Install the raceway systems complying with manufacturer's written instructions,
applicable requirements of NEC, NEMA, and NECA's "Standard of Installation"
and in accordance with recognized industry practice.
B. The raceway installation shall be coordinated with other trades. The layout
indicated on the drawings is diagramatic. Offsets in conduit are not indicated
and shall be furnished as required.
C. Where raceways must pass through structural members, approval from the
Owner shall be obtained with respect to location and size of hole prior to drilling.
D. Raceways that pass through expansion joints shall be provided with expansion
fittings approved for the application.
E. Exposed raceways shall be run parallel with or at right angles to the building
walls.
F. Raceways shall be secured in place and protected where necessary to prevent
damage to the work during construction. Refer to Section: SUPPORTING
DEVICES for specific support requirements and methods.
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RACEWAYS
Section 16110
G. Installation of raceways shall be complete and shall be blown out and swabbed
clear of water and trash prior to pulling wire.
H. Install junction boxes where necessary to avoid excessive runs or too many
bends. Refer to Section "BOXES" for specific box types and requirements.
3.2
ELECTRICAL METALLIC TUBING:
A. Electrical metallic tubing stubbed up from floor or down from ceiling space and
not connected to an enclosure shall terminate with an insulated throat connector.
3.3
RIGID METAL CONDUIT:
A. Rigid metal conduit shall be secured to metal enclosures with two locknuts.
B. Insulated bushings shall be installed at all connections to cabinets and boxes.
Terminate stub-ups not attached to enclosures with an insulated throat,
grounding bushing.
C. Commercial conductive pipe joint compound shall be applied to the male threads
on all threaded joints and fittings.
D. Connections shall be wrench tight and where subject to ground water, rain or
spray shall be watertight.
E. Treat metallic conduit fittings buried in earth or gravel with one of the following:
Two coats of asphaltum, field applied.
A plastic coating, factory applied.
Spiral wrapped, half lapped, 20 mil plastic tape, field applied.
3.4
RACEWAY SLEEVES AND SEALING:
A. Where raceways penetrate fire walls or floors, the space between the raceway
and building material shall be sealed with a Code approved material or fitting
equal in fire rating to the building material being pierced. Spaces between
raceways and sleeves shall also be sealed.
B. Conduits entering refrigerated spaces, i.e., freezers and coolers, shall be
installed with sealing fittings to prevent entrance of moisture.
END OF SECTION
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BUILDING WIRE AND CABLE
Section 16123
SECTION 16123
BUILDING WIRE AND CABLE
1 GENERAL
1.1
SECTION INCLUDES
A. Building wire and cable.
B. Underground feeder and branch circuit cable.
C. Service entrance cable.
D. Wiring connectors and connections.
1.2 RELATED SECTIONS
A. Section 16110 - Raceways.
B. Section 16130 - Boxes.
C. Section 16195 - Identification.
1.3 REFERENCES
A. ANSI/NFPA 70 - National Electrical Code.
1.4 SUBMITTALS
A. Manufacturer's Installation Instructions: Indicate application conditions and limitations
of use stipulated by product testing agency specified under Regulatory Requirements.
1.5 QUALIFICATIONS
A. Manufacturer: Company specializing in manufacturing products specified in this
Section with minimum five years experience.
1.6 REGULATORY REQUIREMENTS
A. Conform to requirements of ANSI/NFPA 70.
B. Furnish products listed and classified by Underwriters Laboratories, Inc. as suitable for
purpose specified and shown.
1.7 PROJECT CONDITIONS
A. Conductor sizes are based on copper.
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BUILDING WIRE AND CABLE
Section 16123
B. Where wire and cable routing is not shown, and destination only is indicated, determine
exact routing and lengths required.
1.8 COORDINATION
A. Determine required separation between cable and other work.
B. Determine cable routing to avoid interference with other work.
2
PRODUCTS
2.1 BUILDING WIRE AND CABLE
A. Description: Single conductor insulated wire.
B. Conductor: Copper solid for A.W.G. for sizes No. 10 and 12; all other sizes stranded.
C. Insulation Voltage Rating: 600 volts.
D. Insulation: ANSI/NFPA 70; Type XHHW insulation for feeders and branch circuits
larger than 4/0 AWG; Type THHN/THWN insulation for feeders and branch circuits 4/0
AWG and smaller.
2.2 SERVICE ENTRANCE CABLE
A. Description: ANSI/NFPA 70, Type SE.
B. Conductor: Copper
C. Insulation Voltage Rating: 600 volts.
D. Insulation: Type XHHW
3
EXECUTION
3.1 EXAMINATION
A. Verify that interior of building has been protected from weather.
B. Verify that mechanical work likely to damage wire has been completed.
3.2 PREPARATION
A. Completely and thoroughly swab raceway before installing wire.
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Section 16123
3.3 INSTALLATION
A. Install products in accordance with manufacturer’s instructions.
B. Use solid conductor for feeders and branch circuits 10 AWG and smaller.
C. Use stranded conductors for control circuits.
D. Use conductor not less than 12 AWG for power and lighting circuits.
E. Use conductor not less than 16 AWG for control circuits.
F. Use 10 AWG conductors for 20 ampere, 120 volt branch circuits longer than 75 feet.
G. Use 10 AWG conductors for 20 ampere, 277 volt branch circuits longer than 200 feet.
H. Pull all conductors into raceway at same time.
I.
Use suitable wire pulling lubricant for building wire 4 AWG and larger.
J. Neatly train and lace wiring inside boxes, equipment, and panelboards.
K. Clean conductor surfaces before installing lugs and connectors.
L. Make splices, taps, and terminations to carry full ampacity of conductors with no
perceptible temperature rise.
M. Use split bolt connectors for copper conductor splices and taps, 6 AWG and larger.
Tape uninsulated conductors and connector with electrical tape to 150 percent of
insulation rating of conductor.
N. Use solderless pressure connectors with insulating covers for copper conductor splices
and taps, 8 AWG and smaller.
O. Use insulated spring wire connectors with plastic caps for copper conductor splices
and taps, 10 AWG and smaller.
3.4 INTERFACE WITH OTHER PRODUCTS
A. Identify wire and cable under provisions of Section 16195.
B. Identify each conductor with its circuit number or other designation indicated on
Drawings.
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Section 16123
3.5 FIELD QUALITY CONTROL
A. Inspect wire for physical damage and proper connection.
B. Measure tightness of bolted connections and compare torque measurements with
manufacturer's recommended values.
C. Verify continuity of each branch circuit conductor.
END OF SECTION
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BOXES
Section 16130
SECTION 16130
BOXES
1
GENERAL
1.1
RELATED DOCUMENTS:
A. Work in this Section consists of the installation of all boxes throughout the wiring
system and is part of each Division 16 Section.
1.2
SCOPE OF WORK:
A. Install boxes at each device or junction box required by these specifications or
indicated on the Drawings. Provide all material described in this Section.
B. Types of boxes described in this Section include the following:
Device Boxes
Junction Boxes
Pull Boxes
Conduit Bodies
2
PRODUCTS
2.1
CONSTRUCTION:
A. Boxes shall be of form and dimension as to be adapted to its specific use and
location, device or fixture to be mounted in or on box, and number, size, and
arrangement of raceways connecting thereto.
2.2
DEVICE BOXES:
A. Boxes shall be constructed of code-gauge galvanized steel unless otherwise
specified.
B. Boxes exposed to hazardous conditions, rain or spray shall be corrosion
resistant cast metal of type, shape, and size to suit respective locations and
installations. Provide with threaded entrances, removable covers, gaskets, and
corrosion-resistant screws.
C. Outlet boxes surface mounted on walls or columns shall generally be 4" square,
2-1/8" deep, with no plaster ring.
D. Outlet boxes recessed in ceilings shall be 4" octagonal or square, 2-1/8" depth.
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BOXES
Section 16130
E. Where special purpose devices require a larger outlet box than specified herein,
provide outlet boxes suitable for each specific device.
F. Acceptable Manufacturers:
Appleton Electric Company
Crouse-Hinds, Inc.
Efcor, Inc.
Midland Ross Corporation
O.Z. Gedney Company
Raco, Inc.
Steel City Electric Products Division
2.3
JUNCTION AND PULL BOXES:
A. Boxes shall be constructed of code gauge galvanized sheet metal unless
otherwise indicated or specified. Boxes shall be of dimensions as required by
number and size of connecting raceways and wire, and as required by code.
B. All boxes shall be provided with screw removable blank covers. Covers on
recessed ceiling boxes shall be round, and painted to match ceiling.
C. Acceptable Manufacturers:
Appleton Electric Company
Crouse-Hinds, Inc.
O.Z. Gedney Company
Raco, Inc.
Steel City Corporation
2.4
CONDUIT BODIES:
A. Conduit bodies shall be constructed of corrosion-resistant cast-metal of type,
shape, and size to suit respective locations and installations.
B. Conduit bodies shall have threaded conduit-entrance ends, removable covers,
gaskets, and corrosion-resistant screws.
C. Acceptable Manufacturers:
Appleton Electric Company
Crouse-Hinds, Inc.
O.Z. Gedney Company
Pyle National Company
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BOXES
Section 16130
3
EXECUTION
3.1
BOX INSTALLATION:
A. Install boxes where indicated or required, complying with manufacturer's written
instructions, applicable requirements of NEC and NECA's "Standard of
Installation", and in compliance with recognized industry practice.
B. Coordinate box installation with wire/cable and raceway installation.
C. Coordinate box installation with existing conditions such that boxes will be easily
accessible.
D. Boxes shall not be installed back to back.
E. Firmly anchor all boxes in place. Refer to Section: SUPPORTING DEVICES for
specific requirements and methods.
F. Provide knockout closures to cap unused knockout holes where blanks have
been removed.
G. The approximate locations of devices are shown on the Drawings.
H. The exact locations of all devices shall be determined at the building. The right
is reserved to change the exact location of any device in any room before it is
permanently installed.
3.2
OUTLET BOX:
A. Install device boxes at heights above finished floor, measured to centerline of
outlet, as indicated on the Drawings.
B. Install outlet boxes in one vertical line when they are shown adjacent on the
Drawings but at different mounting heights.
3.3
JUNCTION AND PULL BOXES:
A. Install junction and pull boxes as indicated on the Drawings and where
necessary to avoid excessive length of run or number of bends and to provide
access to cable supports.
B. Install standard exposed junction or pull boxes only in unfinished spaces, unless
indicated otherwise on the Drawings. Boxes in finished areas shall match the
Surface Metal Raceway used.
END OF SECTION
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GROUNDING AND BONDING
Section 16170
SECTION 16170
GROUNDING AND BONDING
1
GENERAL
1.1
SECTION INCLUDES
A. Grounding electrodes and conductors.
B. Equipment grounding conductors.
C. Bonding.
1.2 REFERENCES
A. ANSI/NFPA 70 - National Electrical Code.
1.3 GROUNDING ELECTRODE SYSTEM
A. Existing Metal underground water pipe.
B. Metal frame of the building.
C. Concrete-encased electrode.
D. Rod electrode.
1.4 PERFORMANCE REQUIREMENTS
A. Grounding System Resistance: Less than 25 ohms.
1.5 REGULATORY REQUIREMENTS
A. Conform to requirements of ANSI/NFPA 70.
B. Furnish products listed and classified by Underwriters Laboratories, Inc. as suitable for
purpose specified and shown.
2 PRODUCTS
2.1 ROD ELECTRODE
A.
Material: Copper-clad steel.
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Section 16170
B.
Diameter: ¾ inch.
C.
Length: 10 feet.
2.2 MECHANICAL CONNECTORS
A.
Material: Bronze
2.3 EXOTHERMIC CONNECTIONS
A.
Manufacturers:
1.
Cadweld
2.4 WIRE
A.
Material: Stranded copper.
B.
Foundation Electrodes: 2/0 AWG.
C.
Grounding Electrode Conductor: Size to meet NFPA 70 requirements.
2.5 GROUNDING WELL COMPONENTS
3
A.
Well Pipe: 8 inch diameter by 24 inch long clay tile pipe with belled end.
B.
Well Cover: Cast iron with legend “GROUND” embossed on cover.
EXECUTION
3.1 EXAMINATION
A.
Verify that final backfill and compaction has been completed before driving rod
electrodes.
3.2 INSTALLATION
A.
Install Products in accordance with manufacturer’s instructions.
B.
Install rod electrodes at locations indicated. Install additional rod electrodes as
required to achieve specified resistance to ground.
C.
Provide grounding well pipe with cover at rod locations where indicated. Install well
pipe top flush with finished grade.
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Section 16170
D.
Provide grounding electrode conductor and connect to reinforcing steel in foundation
footing where indicated.
E.
Provide bonding to meet Regulatory Requirements.
F.
Provide isolated grounding conductor for circuits supplying personal computers.
G.
Equipment Grounding Conductor: Provide separate, insulated conductor within each
feeder and branch circuit raceway. Terminate each end on suitable lug, bus, or
bushing.
3.3 FIELD QUALITY CONTROL
A.
Inspect grounding and bonding system conductors and connections for tightness and
proper installation.
B.
Use suitable test instrument to measure resistance to ground of system. Perform
testing in accordance with test instrument manufacturer’s recommendations using the
fall-of-potential method.
END OF SECTION
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SUPPORTING DEVICES
Section 16190
SECTION 16190
SUPPORTING DEVICES
1
GENERAL
1.1
RELATED DOCUMENTS:
A. Work in this Section consists of the installation of all supporting devices required
for the installation of all equipment specified in Division 16.
1.2
SCOPE OF WORK:
A. All raceways, cables, and electrical equipment shall be firmly anchored or
supported in place as required by codes and as specified herein.
B. Types of supporting devices specified in this Section include the following:
Beam Clamps
Cable Ties
Channel Strut Systems
Conduit Supports
Anchors
1.3
DRAWINGS:
A. Generally, supporting devices are not indicated on Drawings; however,
supporting devices are to be supplied as required for each specific application to
comply with codes and as specified herein.
2
PRODUCTS
2.1
BEAM CLAMPS:
A. Beam clamps shall be galvanized steel, furnished with tapped holes in base and
face for bolt or hanger rod.
B. Acceptable Manufacturers:
Appleton Electric Company
Efcor, Inc.
Kindorf Electrical Products Division
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SUPPORTING DEVICES
Section 16190
2.2
CABLE TIES:
A. Cable ties shall be one piece, all nylon, with a 90 degree insertion angle.
B. Acceptable Manufacturers:
Panduit Corporation
Thomas & Betts Corporation
2.3
CONDUIT SUPPORTS:
A. Conduit supports shall be galvanized steel straps or hangers, or spring steel type
hangers or clamps.
B. Acceptable Manufacturers:
Appleton Electric Company
Caddy Corporation
Raco, Inc.
Thomas & Betts Corporation
2.4
CHANNEL STRUT SYSTEMS:
A. Channel shall be #14 gauge minimum galvanized steel. Attachment holes shall
be factory punched. Straps for the support of conduit shall be designed so that
the attachment nut is captivated on the shoulder of the strap when tightened.
Attachment nuts shall be designed to provide a surface on the turned down edge
while making positive contact with the side walls of the channel. All nuts, bolts,
straps, and other equipment required for proper installation according to
manufacturer's recommendation shall be provided and shall be protected with
same finish as channel.
B. Acceptable Manufacturers:
Kindorf Electrical Products Division
Unistrut, Inc.
3
EXECUTION
3.1
BEAM CLAMPS:
A. Beam clamps may be used for support of raceways, enclosures, panelboards or
other equipment where attached to/from fixed steel supports or structures.
Beam clamps fastened to steel supports not horizontal or vertical shall be
provided with a swing connector.
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SUPPORTING DEVICES
Section 16190
Beam clamps fastened to structures in a horizontal position (bolt is horizontal)
shall not be used for support of equipment exceeding 10 pounds.
3.2
CABLE TIES:
A. Cable ties shall be provided for grouping and organizing cables in wireways or
enclosures. Cable ties shall be used for securing cables from movement.
3.3
CABLE SUPPORTS:
A. Install cable supports in vertical runs at Code required intervals and as
recommended by manufacturer.
3.4
CHANNEL STRUT SYSTEMS
A. Channel strut systems shall be used for support of all multiple runs of conduit.
Channel may also be used for support of enclosures or other equipment.
B. Channel strut shall be supported from steel rods 3/8" minimum when not directly
fastened to structure.
3.5
CONDUIT SUPPORTS:
A. Straps, clamps, or hangers shall be used for support of individual runs of conduit
or raceway. Channel strut systems shall be used for multiple runs.
B. Spring steel type hangers or clamps shall be used for support of conduit to steel
except where exposed to rain or moisture.
C. Conduit support devices shall be secured to structure with wood screws on
wood, toggle bolts on hollow masonry, lead anchors on solid masonry or
concrete, and machine bolts and beam clamps on steel. Nails are not
acceptable.
D. Conduits secured to surfaces exposed to water or spray shall be supported by
hangers which hold conduit completely off surface.
E. Conduits shall not be supported from ceiling suspension system.
F. Conduit supports shall not be welded to steel structures.
G. Riser clamps shall be installed at all vertically routed conduits where required by
Code.
END OF SECTION
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ELECTRICAL IDENTIFICATION
Section 16195
SECTION 16195
ELECTRICAL IDENTIFICATION
1
GENERAL
1.1
RELATED DOCUMENTS:
A. Work in this Section consists of providing identification of electrical equipment
and is part of each Division 16 Section.
1.2
SCOPE OF WORK:
A. Provide identification of electrical equipment to the extent specified herein or
indicated on the Drawings.
B. Types of electrical identification specified in this Section include the following:
Cable/conductor identification
Operational instructions and warnings
Danger signs
Equipment identification signs
2
PRODUCTS
2.1
PLASTICIZED TAGS:
A. Tags shall be pre-printed or partially pre-printed accident prevention and
operational tags, of PLASTICIZED card stock with matt finish suitable for writing,
approximately 3-1/4" by 5-5/8", with brass grommets and wire fasteners, and
appropriate wording, i.e., DANGER, CAUTION, DO NOT OPERATE, etc.
2.2
EQUIPMENT IDENTIFICATION
A. Equipment identification shall consist of white core plastic laminate with
engraved lettering.
3
EXECUTION
3.1
INSTALLATION:
A. Where identification is to be applied to surfaces which require a finish,
identification shall be installed after surface has been finished.
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ELECTRICAL IDENTIFICATION
Section 16195
3.2
CONDUCTOR IDENTIFICATION:
A. New conductors, #10 AWG or smaller, shall have outer covering color-coded to
indicate phase, neutral, and ground conductors. Color-coded self-adhesive 1"
wide tape bands shall be installed on conductors larger than #10 AWG. Colors
shall be as follows:
3.3
All grounding conductors
Green
208Y/120 volt system:
Phase A
Phase B
Phase C
Neutral
Black
Red
Blue
White
480/277 volt system:
Phase A
Phase B
Phase C
Neutral
Brown
Orange
Yellow
Gray
CABLE IDENTIFICATION:
A. Install cable identification on each new signal cable. Identification shall match
schedule at termination point(s), shop drawings, and similar previously
established identification for project. Every conductor shall be identified at every
termination or splice. A color-coding scheme for all cable conductors shall be
established and maintained.
3.4
OPERATIONAL IDENTIFICATION AND WARNINGS:
A. Install self-adhesive plastic signs or similar equivalent identification for instruction
or warnings on new controls, devices, and covers of electrical enclosures
wherever reasonable to ensure safe and efficient operation and maintenance of
electrical systems including prevention of misuse of electrical facilities by
unauthorized personnel.
3.5
DANGER SIGNS:
A. Install danger signs where required by governing regulations and authorities as
constituting a danger for persons in or about project.
B. Install danger signs wherever it is possible for persons to encounter electrical
power of voltage in excess of 120 volts to ground on new equipment.
C. Install danger signs on new equipment, regardless of whether concealed or
locked up, where untimely or inadvertent operation could result in significant
danger to persons, or damage to or loss of property.
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Section 16195
3.6
EQUIPMENT IDENTIFICATION:
A. Install engraved signs at or on each special apparatus and signal systems,
unless equipment is specified with its own self-explanatory identification. Text
shall match terminology and numbering of the contract documents and shop
drawings as close as practicable.
B. Install signs at locations for best convenience of viewing without interference with
operation and maintenance of equipment.
C. Attach signs with rustproof screws.
3.7
CIRCUIT IDENTIFICATION:
A. Revise directory in branch circuit panelboards describing new loads served by
each new circuit and the location.
END OF SECTION
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GENERATORS
SECTION 16310
SECTION 16310
GENERATORS
PART 1
1.1
1.2
1.3
GENERAL
WORK INCLUDED
A.
Provide all labor, materials, and equipment to furnish, install, and place in
operation the NATURAL GAS fuel power generation system in accordance with
the contract documents and manufacturer's drawings and installation
instructions. All equipment shall be new; factory tested, and delivered ready for
field installation.
B.
The responsibility for performance to this specification shall not be divided
among individual component manufacturers, but must be assumed solely by the
primary manufacturer. This includes generating system design, manufacture,
test, and having a local supplier responsible for service, parts, and warranty for
the total system.
C.
Generator set mounted subassemblies such as cooling system, base, enclosure,
30% local air intake system, exhaust outlet fittings, and generator set mounted
controls and switchgear shall also be designed, built, and assembled as a
complete unit by the engine/generator set manufacturer.
ACCEPTABLE MANUFACTURERS
A.
The engine and generator sets shall be manufactured, packaged, and tested in
the U.S. Accepted manufacturers are Caterpillar, Cummins-Onan, and Kohler.
B.
The manufacturer shall have printed literature and brochures describing the
standard series specified, not a one-of-a kind fabrication.
SUBMITTALS
A.
Provide six (6) sets of all submittal data.
include the following information:
Engine-generator submittals shall
1.
Factory published specification sheet indicating standard and optional
accessories, ratings, etc.
2.
Manufacturer's catalog cut sheets of all auxiliary components such as
Automatic Transfer Switches, battery charger, control panel, enclosure,
main circuit breaker, etc.
3.
Dimensional elevation and layout drawings of the generator set,
enclosure and transfer switchgear and related accessories.
4.
Weights of all equipment.
5.
Concrete pad recommendation, layout, and stub-up locations of electrical
and fuel systems.
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GENERATORS
SECTION 16310
1.4
6.
Interconnect wiring diagram of complete emergency system, including
generator, battery charger, jacket water heater, remote alarm indications,
and automatic transfer switch.
7.
Engine mechanical data including heat rejection, exhaust gas flows,
combustion air and ventilation air flows, noise data, fuel consumption,
etc.
8.
Generator electrical data including temperature and insulation data,
cooling requirements, excitation ratings, voltage regulation, voltage
regulator, efficiencies, waveform distortion and telephone influence
factor.
9.
Generator resistances, reactances, and time constants.
10.
Generator motor starting capability.
11.
Control panel schematics.
12.
Oil sampling analysis, laboratory location, and information.
13.
Manufacturer's and dealer's written warranty.
TESTS
A.
B.
Production Tests: The system manufacturer shall perform production tests on
the complete generator set supplied at the generator set manufacturer facility. A
certified report of these tests shall be available when requested at the time of the
generator set order. These tests and controls shall include but not be limited to:
1.
Operation at rated kW
2.
Operation at rated kVA (0.8 pf)
3.
Transient and steady state governing
4.
Transient and steady state voltage regulation
5.
Operation of all alarm and shutdown devices
6.
Operation at 125% overspeed at room temperature
Prototype Tests: The system manufacturer must certify that engine, generator
set, controls, and switchgear have been tested as a complete system of
representative engineering models (not on equipment sold). Prototype testing
shall include:
1.
Fuel consumption at 1/2, 3/4, and full load
2.
Exhaust emissions
3.
Mechanical and exhaust noise
4.
Governor speed regulation at 1/2, 3/4, and full load; and during transients
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GENERATORS
SECTION 16310
1.5
1.6
5.
Motor starting kVA
6.
Generator set temperature rise in accordance with NEMA MG1-22.40
7.
Voltage regulation at 1/2, 3/4, and full load; and during transients
8.
Generator set short circuit capability
9.
Cooling system performance
10.
Torsional analysis
11.
Linear vibration analysis
WARRANTY
A.
The manufacturer's standard warranty shall in no event be for a period of less
than two (2) years from date of initial start-up of the system and shall include
repair parts, labor, reasonable travel expense necessary for repairs at the job
site, and expendables (lubricating oil, filters, antifreeze, and other service items
made unusable by the defect) used during the course of repair. Submittals
received without written warranties as specified will be rejected in their entirety.
B.
The generator set supplier shall have sufficient parts inventory to maintain over
the counter availability of at least 90% of any required parts and shall guarantee
100% parts availability within 48 hours from the time an order is entered with the
dealer. The factory authorized servicing dealer shall maintain qualified, factory
trained service personnel that can respond to an emergency call within 4 hours
of notification.
PARTS AND SERVICE QUALIFICATIONS
A.
The engine-generator supplier shall have service facilities within 100 miles of the
project site and maintain 24-hour parts and service capability. The distributor
shall stock parts as needed to support the generator set package for this specific
project.
B.
The generator set supplier shall have sufficient parts inventory to maintain over
the counter availability of at least 90% of any required parts and shall guarantee
100% parts availability within 48 hours from the time an order is entered with the
dealer.
C.
The factory authorized servicing dealer shall maintain qualified, factory trained
service personnel that can respond to an emergency call within 4 hours of
notification.
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GENERATORS
SECTION 16310
PART 2
2.1
2.2
PRODUCTS
SYSTEM RATING
A.
The electric power generating system shall have the capability of generating
rated power at 1000 feet above sea level with maximum engine ambient
temperatures of 110°F and minimum temperatures of 20°F.
B.
The electrical generating rating and requirements are as follows:
KW
60
KVA
75
PF
0.8
Voltage
208/120 V
Automatic
Transfer
Switch
YES
Enclosure
Outdoor
SYSTEM PERFORMANCE
A.
The power generating system shall conform to the following performance criteria
at the site conditions:
1.
Rating - Engine brake horsepower shall be sufficient to deliver full rated
generator set kW/kVA when operated at rated rpm and equipped with all
engine-mounted parasitic and external loads such as power generator
sets.
2.
Start Time and Load Acceptance - Engines shall start, achieve rated
voltage and frequency, and be capable of load acceptance within 15
seconds when properly equipped and maintained.
3.
Block Load – With the power generating system at normal operating
temperature, it shall meet ISO 8528-5 criteria for voltage and frequency
deviations and recovery time for gas engine, less applicable de-rating
factors with 25% block load and unload steps (these steps have been
substituted in place of the standard ISO8528-5 load and power decrease
steps). And it shall perform within class 1 tolerance limit listed:
a.
Frequency Recovery Time: 10 sec.
b.
Frequency Deviation Range
(1)
Stepped Load Increase -25%
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GENERATORS
SECTION 16310
c.
2.3
2.4
(2)
Stepped Load Decrease +18 %
(3)
Tolerance for Recovery ±1.75 %
(4)
Voltage Recovery Time: 10 sec
Voltage Deviation:
(1)
Stepped Load Decrease + 35 %
(2)
Stepped Load Increase -25%
(3)
Steady State Stability
(4)
Frequency ±1.25 %
(5)
Voltage ± 5 %
NATURAL GAS ENGINE
A.
The engine shall be a stationary, natural gas fuel, liquid cooled, four-cycle
design, with dry exhaust manifolds. It shall be manufactured in the United
States. Two cycle engines are not acceptable. It shall be designed to operate
on gas supply pressures from 1.5 to 5.0 psi (10.3 to 40.6 kPa).
B.
Generator set must meet emissions levels of 2.0 gram NOx/bhp hour. Engine
shall use an Engine Control Module with Detonation Sensitive Timing sensors. A
safety device to detect detonation in the gas engine and retard timing to
eliminate it or shut down the engine if retarding the timing cannot stop
detonation.
ENGINE ACCESSORY EQUIPMENT
A.
Mechanical, positive displacement lube oil pump with replaceable full flow filter,
oil cooler, and dip stick.
B.
Oil drain shall be equipped with shutoff valve and shall be piped to the generator
set base frame where it shall be terminated with a capped NPT pipefitting.
C.
Replaceable dry single element air filter with filter restriction indicator.
D.
Dual 24 volt electric starting motors and control circuit capable of three complete
starting cycles without overheating.
E.
Fully guarded charging alternator with circuit breaker. The use of charging
alternators as the only means of charging the unit batteries is not acceptable.
F.
Generator set mounted, electrically powered, thermostatically controlled jacket
water heater sized to ensure proper starting. Heater shall include isolation
valves and adjustable thermostat. An automatic disconnect device shall be
provided to remove electrical power upon engine start.
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GENERATORS
SECTION 16310
2.5
2.6
GENERATOR
A.
The generator set shall be 6 lead close coupled, drip proof and guarded,
constructed to NEMA 1 and IP 22 standards, single bearing, salient pole,
revolving field, synchronous type with amortisseur windings in the pole faces of
the rotating field and skewed stator windings to produce optimum voltage
waveform. A reactive droop current transformer shall be installed and connected
to the voltage regulator.
B.
The generator set pitch shall be selected to optimize the generator set efficiency
and minimize the total harmonic distortion, especially the 5th and 7th harmonics
which are detrimental to AC motors.
C.
The generator set shall be capable of delivering rated kVA at 60 Hz and 0.8 PF
within +/-5% of rated voltage.
D.
All insulation systems shall meet NEMA MG-1 standards for Class H systems.
The actual generator set temperature shall be limited to Class F levels (130
degrees C rise by resistance over 40 degrees C ambient). Materials that support
fungus growth shall not be used.
E.
A 3-phase permanent magnet (PM) generator set shall provide the source of
excitation to the exciter to increase immunity to non-linear loads and to maintain
300% of rated current for 10 seconds during short circuit conditions.
F.
Digital Voltage Regulator: The microprocessor based digital voltage regulator
shall maintain generator set output voltage within ±0.25% for any load between
no load and full load across the entire operating temperature range. The
regulator shall employ a programmable volts per Hertz regulation characteristic
with adjustable slope (volts/Hertz), adjustable constant voltage corner frequency,
and adjustable under voltage corner frequency. Sensing shall be 3-phase true
RMS. The regulator shall provide programmable over/under voltage protection,
overexcitation protection, diode failure monitor, and logged fault and service
codes to aid in trouble-shooting. It shall incorporate an RS-485 communications
port allowing external monitoring and control of the regulator. The regulator shall
be environmentally sealed.
G.
An electrically operated space heater shall be installed in the generator set to
ensure the generator set windings stay dry during periods of non-operation. An
automatic disconnect device shall be provided to remove electrical power upon
engine start.
CIRCUIT BREAKERS
A.
Main Circuit Breaker: Provide a generator mounted circuit breaker, molded case
or insulated case construction in NEMA 3R enclosures for indoor units and in
NEMA 3R for outdoor unit. Breaker shall utilize a thermal magnetic trip unit and
24 VDC shunt trip. The breaker shall be UL listed with shunt trip device
connected to engine/generator safety shutdowns. Breaker shall be housed in an
extension terminal box mounted on the side of the generator. Mechanical type
lugs shall be adequately sized and shall be supplied on the load side of breaker.
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GENERATORS
SECTION 16310
B.
2.7
Load Bank Circuit Breaker: Provide a generator mounted circuit breaker,
molded case or insulated case construction in NEMA 1 enclosures for indoor
units and in NEMA 3R for outdoor unit. Breaker shall utilize a thermal magnetic
trip unit and 24 VDC shunt trip. The breaker shall be UL listed with shunt trip
device connected to engine/generator safety shutdowns. Breaker shall be
housed in an extension terminal box mounted on the side of the generator.
Mechanical type lugs, shall be supplied on the load side of breaker for factory
connection to generator.
CONTROLS
A.
The control panel shall be designed and built by the engine-generator set
manufacturer. It shall be mounted on the generator set and incorporate 100%
solid-state microprocessor based control circuitry and digital instrumentation. All
electronic control components are to be mounted in sealed, dust tight, watertight,
metal housings. Housings that must be opened for service or setup are not
acceptable. All output circuits greater than 100mA shall be fuse or circuit
breaker protected; load. The load share module, panel light, and auxiliary relay
and shunt trip relay breaker circuits shall be protected by individual 10 amp
fuses. The panel shall be labeled with ISO symbols and comply with IEC 144, IP
22, and NEMA 12 for external environmental resistance, and IP 44 and NEMA 12
for resistance of the internal sealed modules. The control panel shall be
mounted RH and shall be vibration isolated.
B.
The panel shall include the following equipment/functions:
1.
Automatic remote start capability with mode of operation selectable from
a panel-mounted 4-position switch (Stop, Manual, Automatic, Reset).
2.
A purge cycle adjustable from zero to 20 seconds. The purge cycle
permits the engine to crank with no power to the gas shutoff valve or
spark plugs for the purpose of "purging" the engine and exhaust of any
gas that may be present at start-up
3.
A 5-seconds delayed ignition shutoff. Power to the ignition system will
continue for at least 5 additional seconds to provide ample time to burn
the gas remaining in the engine.
a.
Cycle crank with adjustable "crank" and "rest" times.
b.
Adjustable cooldown timer.
c.
Emergency Stop push button requiring manual reset.
4.
An annunciated shutdown for detonation and an annunciated high inlet
temperature warning must be available.
5.
Protective functions for the following parameters shall be provided. Each
function shall be adjustable for trip point and time delay. Each function
shall be programmable as an alarm or a generator set shutdown:
a.
Over/under voltage protection
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GENERATORS
SECTION 16310
6.
b.
Over/under frequency protection
c.
Over Current protection
Individual flashing LED's shall be provided. The use of a common alarm
or shutdown lamp which depends on a separate display to determine the
alarm or fault condition is not acceptable. Separate LED annunciation
shall be provided for:
a.
Overspeed (red)
b.
Overcrank (red)
c.
High Coolant temperature (red)
d.
Low Oil pressure (red)
e.
Emergency Stop (red)
f.
Low Coolant Level (red - programmable as alarm or shutdown)
g.
Engine RPM circuit monitor
h.
High battery voltage
i.
Low battery voltage
j.
Five LEDs of custom annunciation
7.
Panel illumination lights (2) with ON/OFF switch.
8.
Separate digital displays shall be provided for the engine and generator
set parameters. These displays shall allow the simultaneous display of
AC parameters and at least one (selectable) engine parameter to be
displayed at the same time. Requirements for these displays are as
follows:
a.
Digital display and phase selector switch for generator set
operational parameters. True RMS sensing of these parameters
shall be utilized to minimize distortion due to non-linear loads and
ensure accuracy.
b.
AC volts (± 0.5% accuracy)
c.
AC amps (± 0.5% accuracy)
d.
Hertz (± 0.3 Hz accuracy)
e.
Digital display for:
(1)
Engine RPM (± 0.5% accuracy)
(2)
DC voltage (± 0.5% accuracy)
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GENERATORS
SECTION 16310
9.
2.8
2.9
2.11
Oil pressure (± 0.5% accuracy)
(4)
Coolant temperature (± 0.5% accuracy)
(5)
Operating hours
Diagnostic Capability: Must provide dual level diagnostics identifying
both system level and component level. The diagnostic codes shall be
maintained in a history log specifying the number of occurrences, and
second/minute/hr at which they occur.
CONTROL WIRING AND CONDUIT
A.
Engine and generator set control wiring shall be multi-strand annealed copper
conductors encased by cross-linked polyethylene insulation resistant to heat,
abrasion, oil, water, antifreeze, and diesel fuel. Wiring shall be suitable for
continuous use at 120 °C (250 °F) with insulation not brittle at –50 °C (-60 °F).
All wiring outside the control panel is to be a minimum of 16 gage.
B.
Each cable will be heat stamped throughout the entire length to identify the
cable's origin and termination. Cables shall be enclosed in nylon flexible conduit
which is slotted to allow easy access and moisture to escape. Reusable
bulkhead fittings will attach the conduit to generator set mounted junction boxes.
COOLING SYSTEM
A.
2.10
(3)
The generator set shall be equipped with a rail-mounted, engine-driven radiator
with blower fan and all accessories. The cooling system shall be sized to
operate at full load conditions with ambient air at the specified temperature
entering the enclosure without derating the unit and 50/50 anti-freeze mixture.
The generator set supplier is responsible for providing a properly sized cooling
system based on the enclosure static pressure restriction.
EXHAUST SYSTEM
A.
The engine-generator shall be provided with critical-grade type exhaust silencer.
Silencer shall be internally insulated, located inside the genset enclosure, and shall
conform to the overall sound level requirements of the sound attenuated enclosure
B.
A flexible stainless steel pipe connection shall be provided between the engine
exhaust manifold and exhaust silencer. Flexible connection shall allow 1-inch
relative motion in all directions without strain on the engine manifold or exhaust
piping. Silencer piping within the genset enclosure shall be fully insulated.
C.
All exhaust shall be connected to existing generator exhaust louver for all indoor
units.
STARTING SYSTEM
A.
A DC electric starting system with positive engagement shall be furnished. The
motor voltage shall be as recommended by the engine manufacturer.
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GENERATORS
SECTION 16310
2.12
B.
Jacket Water Heater: A unit mounted thermal circulation type water heater sized
by the manufacturer to maintain jacket water temperature at 90°F, and shall be a
(208/240) volt, single phase, 60 hertz.
C.
Batteries: A lead-acid storage battery set of the heavy-duty diesel starting type
shall be provided. Battery voltage shall be compatible with the starting system.
The battery set shall be rated no less than 380-ampere hours and 2600 CCA.
Necessary cables and clamps shall be provided.
D.
A battery tray shall be provided for the batteries and shall conform to NEC 4807(b). It shall treated to be resistant to deterioration by battery electrolyte.
Further, construction shall be such that any spillage or boil-over battery
electrolyte shall be contained within the tray to prevent a direct path to ground.
E.
Battery Charger: A current limiting battery charger shall be furnished to
automatically recharge batteries. It shall include overload protection, silicon
diode full wave rectifiers, voltage surge suppressor, DC ammeter, DC voltmeter,
and fused AC input. Ac input voltage shall be 120 volts, single phase. Charger
shall have LED annunciation for low DC volts, rectifier failure, loss of AC power,
and high DC volts. Amperage output shall be no less than ten (20) amperes.
Charger shall be wall-mounting type in NEMA 1 enclosure for indoor units and
NEMA 3R for outdoor unit.
GENERATOR SET ENCLOSURE FOR OUTDOOR UNIT - SOUND ATTENUATED
1.
2.13
Aluminum, sound attenuated, weatherproof enclosure shall be designed to
provide maximum weather protection against driving rain, snow, or other
weather elements. The enclosure shall reduce the noise produced by the
genset to 75dBA at 7 meters while operating at rated load in free field
conditions.
RESISTIVE LOAD BANK
A.
The generator set shall be internally equipped with a resistive load bank so that
the generator set can be automatically tested and/or exercised under load
conditions without interrupting the actual load.
B.
The load bank shall be rated at a minimum of 30% of rated load.
C.
The load bank shall have automatic controls capable of adding and removing
individual load steps as necessary to keep the generator set operating above its
minimum rating.
D.
The load bank shall be configured such that any time the generator set is
operating, the load bank will automatically start-up and place enough load on the
generator set to keep it operating at a minimum of 30% of its rating. Load bank
shall automatically disengage when generator reaches 60% of rated load.
E.
Acceptable suppliers: Avtron or equal.
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GENERATORS
SECTION 16310
2.14
AUTOMATIC TRANSFER SWITCH (ATS)
A.
B.
General:
1.
The ATS shall be rated as specified in the drawings with NEMA
standards. The ATS shall consist of a power transfer switch mechanism
and a microprocessor controller to provide automatic operation. Transfer
switch shall be of the bypass isolation type to facilitate maintenance.
2.
The current rating shall be a continuous rating when the switch is
installed in an unventilated enclosure, and shall conform to NEMA
temperature rise standards. Designs which require cabinet ventilation
are unacceptable and do not meet this specification.
3.
The unit shall be rated based on all classes of loads, i.e., resistive,
tungsten, ballast, and inductive loads.
4.
As a precondition for approval, all transfer switches complete with
accessories shall be listed by Underwriters Laboratories, under Standard
UL 1008 (automatic transfer switches) and approved for use on
emergency systems.
5.
The withstand current capacity of the main contacts shall not be less than
20 times the continuous duty rating when coordinated with any molded
case circuit breaker established by certified test data.
6.
Temperature rise tests in accordance with UL 1008 shall have been
conducted after the overload and endurance tests to confirm the ability of
the units to carry their rated currents within the allowable temperature
limits.
7.
Transfer switches shall comply with the applicable standards of UL, CSA,
ANSI, NFPA, IEEE, NEMA, and IEC.
8.
The transfer switches shall be supplied with a solid-state control panel as
detailed further in these specifications.
9.
Transfer switch shall be provided in a NEMA 12 enclosure. Transfer
switch shall be installed in the electrical room of the facility. Exact
location to be provided by Owner.
Sequence of Operation:
1.
The ATS shall incorporate adjustable three phase under-voltage sensing
of the normal source.
2.
When the voltage of any phase of the normal source is reduced to 80%
of nominal voltage, for a period of 0-10 seconds (programmable) a pilot
contact shall close to initiate starting of the engine generator.
3.
The ATS shall incorporate adjustable single phase under-voltage sensing
of the emergency source.
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GENERATORS
SECTION 16310
4.
When the emergency source has reached a voltage value within 10% of
nominal voltage and achieved frequency within 5% of the rated value, the
load shall be transferred to the emergency source after a programmable
time delay.
5.
When the normal source has been restored to not less than 90% of rated
voltage on all phases, the load shall be re-transferred to the normal
source after a time delay of 0 to 30 minutes (programmable). The
generator shall run unloaded for 5 minutes (programmable) and then
automatically shut down. The generator shall be ready for automatic
operation upon the next failure of the normal source.
6.
If the engine generator should fail while carrying the load, retransfer to
the normal source shall be made instantaneously upon restoration of
proper voltage (90%) on the normal source.
7.
The transfer switch shall be equipped with a solid-state control panel.
The control panel shall perform the operational and display functions of
the ATS position and source availability.
8.
The control panel shall include indicators for timing functions, and ATS
test switch.
9.
The control panel shall be provided with calibrated pots (accessible only
by first opening the lockable cabinet door) to set time delays, voltage and
frequency sensors. The ATS shall be capable of being adjusted while the
controls are energized and the unit in automatic mode. Designs which
force a "programming mode" or require the controls be de-energized
during adjustment are unacceptable.
10.
The control panel shall be opto-isolated from its inputs to reduce
susceptibility to electrical noise and provided with the following inherent
control functions and capabilities:
a.
An LED display for continuous monitoring of the ATS functions.
b.
Built-in diagnostic display.
c.
Test switch to simulate a normal source failure.
d.
Time delay to override momentary normal source failure prior to
engine start. Field programmable 0-10 seconds (continuously
adjustable via a calibrated potentiometer factory set at 3 seconds.
e.
Time delay on retransfer to normal source, continuously
adjustable 0-30 minutes, factory set at 30 minutes. If the
emergency source fails during the retransfer time delay, the
transfer switch controls shall automatically bypass the time delay
and immediately retransfer to the normal position.
f.
Time delay on transfer to emergency, continuously adjustable 015 seconds, factory set at 1 second.
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GENERATORS
SECTION 16310
C.
g.
An in-phase monitor or time-delayed neutral shall be provided to
prevent excessive transient currents from switching motor loads.
h.
An interval-type automatic clock exerciser with load/no load
selectability shall be incorporated in the ATS.
Construction and Performance:
1.
The automatic transfer switch shall be of double throw construction
operated by a reliable electrical mechanism momentarily energized.
There shall be a direct mechanical coupling to facilitate transfer in 6
cycles or less.
2.
The normal and emergency contacts shall be mechanically interlocked
such that failure of any coil or disarrangement of any part shall not permit
a neutral position.
3.
For switches installed in systems having ground fault protective devices,
and/or wired so as to be designated a separately derived system by the
NEC, a 4th pole shall be provided. This additional pole shall isolate the
normal and emergency neutrals. The neutral pole shall have the same
withstand and operational ratings as the other poles and shall be
arranged to break last and make first to minimize neutral switching
transients.
Add-on or accessory poles that are not of identical
construction and withstand capability are not acceptable.
4.
The contact structure shall consist of a main current carrying contact,
which is a silver alloy with a minimum of 50% silver content.
5.
The transfer switch manufacturer shall submit test data for each size
switch required for this project, showing that it can withstand fault
currents of the magnitude and the duration necessary to maintain the
system integrity.
6.
The automatic transfer switch manufacturer shall certify sufficient arc
interrupting capabilities for 60 cycles of operation between a normal and
emergency source that are 120 degrees out of phase at 480 volts, 600%
of rated current at .50 power factor. This certification is to ensure that
there will be no current flow between the two isolated sources during
switching.
7.
All relays shall be continuous duty industrial type with wiping contacts.
Customer interface contacts shall be rated 10 amperes minimum. Coils,
relays, timers, and accessories shall be readily front-accessible. The
control panel and power section shall be interconnected with a harness
and keyed disconnect plugs for maintenance.
8.
Main and arcing contacts shall be visible without major disassembly to
facilitate inspection and maintenance.
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GENERATORS
SECTION 16310
PART 3
3.1
A manual handle shall be provided for maintenance purposes with the
switch de-energized. An operator disconnect switch shall be provided to
defeat automatic operation during maintenance, inspection or manual
operation.
10.
The switch shall be mounted in a NEMA 12 enclosure.
11.
Switches composed of molded case breakers, contactors or components
thereof not specifically designed as an automatic transfer switch will not
be acceptable.
12.
To afford the advantage of a single source of supply to the owner, the
automatic transfer switch shall be supplied by the manufacturer of the
engine generator set and covered under the same warranty program.
13.
Acceptable suppliers: Asco or equal.
EXECUTION
INSTALLATION
A.
3.2
9.
Install equipment in accordance with manufacturer's recommendations, the
project drawings and specifications, and all applicable codes. Installation of the
system includes but is not limited to pouring a concrete pad for the generator set,
receiving offloading, and bolting down of the equipment. Install stub outs of
conduits as shown on the drawings, placing the units in non-operational storage
mode until specified dates for start-up and testing. Provide all labor, permits,
and material to install the total system. Electrical conduit and conductors from
the stub outs to the transfer switch shall be provided by others.
START-UP AND TESTING
A.
After installation is complete (complete system including separate distribution
contract) and normal power is available, the manufacturer's local dealer shall
perform the following:
1.
Verify that the equipment is installed properly.
2.
Check all auxiliary devices for proper operation, including battery charger,
jacket water heater(s), generator space heater, remote annunciator, etc.
3.
Test all alarms and safety shutdown devices for proper operation and
annunciation.
4.
Check all fluid levels.
5.
Start engine and check for exhaust, oil, fuel leaks, vibrations, etc.
6.
Verify proper voltage and phase rotation at the transfer switch before
connecting to the load.
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GENERATORS
SECTION 16310
7.
B.
Connect the generator to building load and verify that the generator will
start and run all designated loads in the plant.
Perform a 4-hour load bank test at full nameplate load. Observe and record the
following data at 15 minute intervals:
1.
Service meter hours
2.
Volts AC - All phases
3.
Amps AC - All phases
4.
Frequency
5.
Power factor or Vars
6.
Jacket water temperature
7.
Oil Pressure
8.
Fuel pressure
9.
Ambient temperature
C.
Operation and Maintenance Manuals: Provide three (3) sets of operation and
maintenance manuals covering the generator, switchgear, and auxiliary
components. Include parts manuals, final as-built wiring interconnect diagrams
and recommended preventative maintenance schedules.
D.
Training: Provide on-site training to instruct the owner's personnel in the proper
operation and maintenance of the equipment.
Review operation and
maintenance manuals, parts manuals, and emergency service procedures.
END OF SECTION
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BID NO. 253818888
PPD NO. 1214556
DISTRIBUTION EQUIPMENT
Section 16400
SECTION 16400
DISTRIBUTION EQUIPMENT
1
GENERAL
1.1
GENERAL:
A. Furnish and install electrical distribution equipment as specified scheduled or
indicated on the drawings.
B. Any component not specifically mentioned but needed for the operation of the
equipment is implied in their description.
2
PRODUCTS
2.1
PANEL BOARDS:
A. General: Provide dead front circuit breaker type panelboards as scheduled on
the drawings. Panelboards shall be “door-to-door” style construction in totally
enclosed in code gauge galvanized sheet metal cabinet. Standard with
manufacturer, buss shall be copper of the ampere rating indicated arrangement
of voltage, phase, and number of wires indicated.
B. Doors and trim shall be steel with adjustable trim clamps and flush hinges. Doors
shall have flush spring latches with locks keyed alike. Provide three (3) master
keys for panel locks. Provide typewritten circuit directory, inside of door, mounted
under transparent plastic in metal frames. Trim shall have two finished coats of
neutral gray lacquer or enamel. Provide heavy duty lock with four (4) keys.
C. Breakers shall be designed to safely handle the short circuit interrupting ampere
rating, as listed on the drawings.
D. Terminal Lugs: Shall be copper and designed to minimize galvanic corrosion.
Use electro-lytic paste and compression squeeze on terminals as specified.
E. All buses for all panel boards shall be copper. Aluminum buss is not acceptable.
F. Name Plates: Micarta plates on the panel designation shall be the same as on
the plans, in neatly painted block letters ½” high on the panel door. Furnish and
install a balanced “as-built” circuit directory, neatly typed on a card and mounted
inside the door.
G. Branch circuit breakers shall be rated and U.L. listed toggle type, quick-make,
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BID NO. 253818888
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DISTRIBUTION EQUIPMENT
Section 16400
quick-break, thermal-magnetic, bolt-in breakers. All mulltipole breakers shall be
single handled common trip type.
H. Breakers with adjustable magnetic trip will be set on the lowest trip setting and
adjusted upward only if needed to start a large motor.
I.
Side and end gutters shall be code sized not less than 4” wide on sides of panel
and at least 6” at top and bottom. Sheet metal enclosure shall conform to code
gage. Residential grade load centers or plug-in type breakers will not be
acceptable.
J. Panelboards shall be of the types indicated on the drawings and shall be as
manufactured by Square “D,” General Electric, or Cutler Hammer.
K. Shop Drawing: Coordination and planning is required to evaluate the required
physical space for all equipment. Submit to the approval authority and/or
Architect a shop drawing; neatly drafted to scale, of the electrical room along with
catalog data necessary for approval.
2.2
CIRCUIT BREAKERS:
A. Breakers shall be designed to safely handle the short circuit interrupting ampere
rating as listed on the drawings.
B. Terminal Lugs: Shall be copper and designed to minimize galvanic corrosion.
Use electro-lytic paste and compression squeeze on terminals as specified.
C. Name Plates: Micarta plates on the panel designation same as on plans in neat
painted block letter 1/2" high on the panel door. Furnish and install a balanced
"as-built" circuit directory neatly typed on a card and mounted inside door.
D. All circuit breakers shall be rated and U.L. listed toggle type, quick-make, quickbreak, thermal-magnetic bolt-in breakers. All multi-pole breakers shall be single
handle common trip type.
E. Breakers with adjustable magnetic trip will be set on the lowest trip setting and
adjusted upward only if needed to start a large motor.
F. Shop Drawing: Coordination and planning is required to evaluate the required
physical space for all equipment. Submit to the approval authority and/or
Architect a shop drawing neatly drafted to scale of the electric room along with
catalog data necessary for approval.
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DISTRIBUTION EQUIPMENT
Section 16400
2.3
SAFETY SWITCHES:
A. All switches for motors shall be rated for the voltage used and horse power
rated. Switches shall be heavy duty. Enclosures shall be metal with bonderized
enamel paint and shall have provisions for receiving locking devices.
1.
2.
3.
4.
2.4
Rated at 600 volt service.
Exterior shall be NEMA 3R enclosure.
Switches shall be as manufactured by General Electric, Square "D,”
or Cutler Hammer.
Provide fuses in all fuse type switches.
FUSES:
A. A complete set of fuses for all switches shall be furnished. Time current
characteristics curves of fuses serving motors or connected in series with circuit
breakers or other circuit protective devices shall be coordinated for proper
operation. Fuses shall have a voltage rating not less than the circuit voltage.
One complete set of spare fuses in the manufacturer's cartons shall be delivered
to the Owner.
3
EXECUTION
3.1
INSTALLATION:
A. Install all electrical distribution equipment in accordance with the manufacturer's
recommendations.
B. Install combination disconnects/motor starters furnished under other Divisions.
C. Coordinate installation with electrical raceway, wiring, and equipment.
END OF SECTION
3
BID NO. 253818888
PPD NO. 1214556