Download BASIC ELECTRICAL MATERIALS AND METHODS 260500

SECTION 260500 - BASIC ELECTRICAL MATERIALS AND METHODS
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport, "Standard Specification for
Infrastructure Improvements," apply to this Section.
B.
Codes and Standards: Where indicated, the referenced edition shall govern.
indicated, the latest edition shall govern.
1.2
Where not
SUMMARY
A.
This Section includes the following:
1.
2.
3.
4.
5.
6.
7.
8.
1.3
Supporting devices for electrical components.
Electrical identification.
Electricity-metering components.
Concrete equipment bases.
Control wiring.
Electrical demolition.
Cutting and patching for electrical construction.
Touchup painting.
SUBMITTALS
A.
1.4
Field Test Reports:
requirements.
Indicate and interpret test results for compliance with performance
DEFINITIONS
A.
General Explanation: A substantial amount of the contract document specification language
constitutes specific definitions for terms found in other Contract Documents, including the
Drawings which must be recognized as diagrammatic in nature and not completely descriptive
of the requirements indicated thereon. Certain terms used repetitiously in the Contract
Documents are defined generally in this article.
B.
General Requirements: The provisions or requirements of the Division 1 Sections. The
General Requirements apply to the entire work of the Contract, and where so indicated, to other
elements of work which are included in the project.
C.
Indicated: The term "Indicated" is a cross reference to details, notes or schedules on the
Drawings, other paragraphs or schedules in the Specifications, and similar means of recording
requirements in the Contract Documents. Where terms such as "shown," "noted," "scheduled"
BASIC ELECTRICAL MATERIALS AND METHODS
260500-1
and "specified" are used in lieu of "indicated," it is for the purpose of helping the reader locate
the cross reference, and no limitation of location is intended except as specifically noted.
D.
Directed, Requested, Etc.: Where not otherwise explained, terms such as "directed,"
"requested," "authorized," "selected," "approved," "required," "accepted," and "permitted" mean
"directed by the Engineer," "requested by the Engineer" etc. However, no such implied
meaning will be interpreted to extend the Engineer's responsibility into the Contractor's area of
construction supervision.
E.
Refer: Used to indicate that the subject is defined or specified in further detail at another
location in the Contract Documents, or elsewhere as indicated. Except as otherwise noted,
"refer" does not imply that the Contractor must purchase or subcontract the subject work in any
special manner.
F.
Approve: Where used in conjunction with the Engineer's response to submittals, requests,
applications, inquiries, reports and claims by the Contractor, the meaning of the term
"approved" will be held to the limitations of the Engineer's responsibilities and duties as
specified in the General and Supplementary Conditions. In no case will "approval" by the
Engineer be interpreted as a release of the Contractor from responsibilities to fulfill the
requirements of the Contract Documents.
G.
Project Site: The space available to the Contractor for the performance of the work, either
exclusively or in conjunction with others performing other work as part of the project. The
extent of the project site may or may not be identical with the description of the land upon
which the project is to be built.
H.
Furnish: Except as otherwise defined in greater detail, the term "furnish" is used to mean
supply and deliver to the project site, ready for unloading, unpacking, assembly, installation,
etc., as applicable in each instance.
I.
Install: Except as otherwise defined in greater detail, the term "install" is used to describe
operations of the project site including unloading, unpacking, assembly, erection, placing,
anchoring, connecting utilities, applying, working to dimension, finishing, curing, protecting,
cleaning and similar operations, as applicable in each instance.
J.
Provide: Except as otherwise defined in greater detail, the term "provide" means furnish and
install, complete and ready for the intended use, as applicable in each instance.
K.
Installer: The entity (person or firm) engaged by the Contractor or its subcontractor or subsubcontractor for the performance of a particular unit of work at the project site, including
installation, erection, application and similar required operations. It is a general requirement
that such entities (Installers) be expert in the operations they are engaged to perform.
1.5
QUALITY ASSURANCE
A.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
B.
Comply with NFPA 70 (2011).
BASIC ELECTRICAL MATERIALS AND METHODS
260500-2
1.6
HAZARDOUS MATERIALS
A.
Asbestos: No asbestos-containing materials have been identified on items that are indicated to
be disturbed. If asbestos-containing materials are encountered, comply with the following:
Upon encountering any previously unidentified materials which he suspects may contain
asbestos, the Contractor shall immediately cease all work in the immediate vicinity of the
suspected materials and notify the Designer and the Owner. The Owner shall retain consultants
to identify the suspected materials. Upon identification, the Owner reserves the right to contract
separately for the removal, or require the Contractor to remove said materials in accordance
with the following provision. In any case, the work shall be performed by a licensed and
certified Abatement Contractor.
The Louisiana Department of Environmental Quality (D.E.Q.) has issued the Louisiana
Emission Standards for Hazardous Air Pollutants. Where asbestos is encountered in a project,
the Contractor shall comply with all laws and ordinances pertaining to asbestos handling and
abatement, including the latest revision of LAC 33:111, Chapter 25, Subchapter F, Emission
Standards for Hazardous Air Pollutants, LAC 33:111, Chapter 27, Asbestos Containing
Materials in Schools and Public Buildings and LAC 33:111, Chapter 51, Subchapter M, Section
5151, Emission Standards for Asbestos.
Notification should be addressed to:
Asbestos Coordinator
Louisiana Department of Environmental Quality
Air Quality Division
Post Office Box 82135
Baton Rouge, Louisiana 70884-2135
If the Owner chooses to remove any previously unidentified materials by utilizing different
Contractors, the Contractor shall cooperate fully with the Owner's consultants and asbestos
abatement Contractor permitting them full access to the project, and shall not resume work in
the vicinity of the suspected materials until advised by the Designer and the Owner that it is safe
to do so
1.7
COORDINATION
A.
The electrical plans and Specifications are a portion of the entire project. Other portions of the
project contain information and requirements that will affect the electrical work. It is the
responsibility of the Electrical Contractor to review all of the Contract Documents and to
include those requirements in the bid.
B.
Coordinate chases, slots, inserts, sleeves, and openings with general construction work and
arrange in building structure during progress of construction to facilitate the electrical
installations that follow.
1.
Set inserts and sleeves in poured-in-place concrete, masonry work, and other structural
components as they are constructed.
BASIC ELECTRICAL MATERIALS AND METHODS
260500-3
C.
Sequence, coordinate, and integrate installing electrical materials and equipment for efficient
flow of the work. Coordinate installing large equipment requiring positioning before closing in
the building.
D.
Coordinate electrical service connections to components furnished by utility companies.
1.
2.
E.
Coordinate installation and connection of exterior underground and overhead utilities and
services, including provision for electricity-metering components.
Comply with requirements of authorities having jurisdiction and of utility company
providing electrical power and other services.
Where electrical identification devices are applied to field-finished surfaces, coordinate
installation of identification devices with completion of finished surface.
PART 2 - PRODUCTS
2.1
SUPPORTING DEVICES
A.
Material: Cold-formed steel, with corrosion-resistant coating acceptable to authorities having
jurisdiction.
B.
Metal Items for Use Outdoors or in Damp Locations: Hot-dip galvanized steel.
C.
Slotted-Steel Channel Supports: Flange edges turned toward web, and 9/16 inch (14 mm)
diameter slotted holes at a maximum of 2 inches (50 mm) o.c., in webs.
D.
Slotted-Steel Channel Supports:
1.
2.
Channel Thickness: Selected to suit structural loading.
Fittings and Accessories: Products of the same manufacturer as channel supports.
E.
Raceway and Cable Supports: Manufactured clevis hangers, riser clamps, straps, threaded
C-clamps with retainers, ceiling trapeze hangers, wall brackets, and spring-steel clamps or
click-type hangers.
F.
Pipe Sleeves: ASTM A 53, Type E, Grade A, Schedule 40, galvanized steel, plain ends.
G.
Cable Supports for Vertical Conduit: Factory-fabricated assembly consisting of threaded body
and insulating wedging plug for non-armored electrical cables in riser conduits. Plugs have
number and size of conductor gripping holes as required to suit individual risers. Body
constructed of malleable-iron casting with hot-dip galvanized finish.
H.
Expansion Anchors: Carbon-steel wedge or sleeve type.
I.
Toggle Bolts: All-steel springhead type.
J.
Powder-Driven Threaded Studs: Heat-treated steel.
BASIC ELECTRICAL MATERIALS AND METHODS
260500-4
2.2
ELECTRICAL IDENTIFICATION
A.
Identification Devices: A single type of identification product for each application category.
Use colors prescribed by ANSI A13.1, NFPA 70, and these Specifications.
B.
Cable Labels: Comply with ANSI A13.1, Table 3, for minimum size of letters for legend and
minimum length of color field for each cable size.
1.
Type: Preprinted, flexible, self-adhesive, vinyl. Legend is overlaminated with a clear,
weather- and chemical-resistant coating.
C.
Colored Adhesive Marking Tape for Wires, and Cables: Self-adhesive vinyl tape, not less than
3/4 inch wide by 3 mils thick (18 mm wide by 0.08 mm thick).
D.
Underground Warning Tape: Permanent, bright-colored, continuous-printed, vinyl tape with
the following features:
1.
2.
3.
4.
Not less than 6 inches wide by 4 mils thick (150 mm wide by 0.102 mm thick).
Compounded for permanent direct-burial service.
Embedded continuous metallic strip or core.
Printed legend that indicates type of underground line.
E.
Tape Markers for Wire: Vinyl or vinyl-cloth, self-adhesive, wraparound type with preprinted
numbers and letters.
F.
Engraved-Plastic Labels, Signs, and Instruction Plates: Engraving stock, melamine plastic
laminate punched or drilled for mechanical fasteners 1/16 inch (1.6 mm) minimum thickness for
signs up to 20 sq. inch (129 sq. cm) and 1/8 inch (3.2 mm) minimum thickness for larger sizes.
Engraved legend in black letters on white background.
G.
Fasteners for Nameplates and Signs: Self-tapping, stainless-steel screws or No. 10/32 stainlesssteel machine screws with nuts and flat and lock washers.
2.3
CONCRETE BASES
A.
2.4
Concrete: 3000-psi (20.7-MPa), 28-day compressive strength.
TOUCHUP PAINT
A.
For Equipment: Equipment manufacturer's paint selected to match installed equipment finish.
B.
Galvanized Surfaces: Zinc-rich paint recommended by item manufacturer.
PART 3 - EXECUTION
BASIC ELECTRICAL MATERIALS AND METHODS
260500-5
3.1
ELECTRICAL EQUIPMENT INSTALLATION
A.
Headroom Maintenance: If mounting heights or other location criteria are not indicated,
arrange and install components and equipment to provide the maximum possible headroom, but
no less than that required by NEC.
B.
Clearances: Coordinate with other trades and/or existing conditions to maintain code required
clearances above, below and around electrical equipment.
C.
Materials and Components: Install level, plumb, and parallel and perpendicular to other
building systems and components, unless otherwise indicated.
D.
Equipment: Install to facilitate service, maintenance, and repair or replacement of components.
Connect for ease of disconnecting, with minimum interference with other installations.
3.2
ELECTRICAL SUPPORTING DEVICE APPLICATION
A.
Damp Locations and Outdoors: Hot-dip galvanized materials or nonmetallic, U-channel system
components.
B.
Dry Locations: Steel materials.
C.
Selection of Supports: Comply with manufacturer's written instructions.
D.
Strength of Supports: Adequate to carry present and future loads, times a safety factor of at
least four; minimum of 200 lb (90 kg) design load.
3.3
SUPPORT INSTALLATION
A.
Install support devices to securely and permanently fasten and support electrical components.
B.
Install individual and multiple raceway hangers and riser clamps to support raceways. Provide
U-bolts, clamps, attachments, and other hardware necessary for hanger assemblies and for
securing hanger rods and conduits.
C.
Support parallel runs of horizontal raceways together on trapeze- or bracket-type hangers.
D.
Size supports for multiple raceway installations so capacity can be increased by a 25 percent
minimum in the future.
E.
Support individual horizontal raceways with separate, malleable-iron pipe hangers or clamps.
Clamps less than 7 feet above the floor shall be one-piece without protruding edges or bolts.
F.
Install 1/4 inch (6 mm) diameter or larger threaded steel hanger rods, unless otherwise
indicated.
G.
Spring-steel fasteners specifically designed for supporting single conduits or tubing may be
used instead of malleable-iron hangers for 1-1/2 inch (38 mm) and smaller raceways serving
lighting and receptacle branch circuits above suspended ceilings and for fastening raceways to
slotted channel and angle supports. Support wires shall be dedicated to the support of electrical
BASIC ELECTRICAL MATERIALS AND METHODS
260500-6
materials and equipment. Ceiling support equipment and wires are not to be used for the
support of electrical equipment.
H.
Arrange supports in vertical runs so the weight of raceways and enclosed conductors is carried
entirely by raceway supports, with no weight load on raceway terminals.
I.
Simultaneously install vertical conductor supports with conductors.
J.
Separately support cast boxes that are threaded to raceways and used for fixture support.
Support sheet-metal boxes directly from the building structure or by bar hangers. If bar hangers
are used, attach bar to raceways on opposite sides of the box and support the raceway with an
approved fastener not more than 24 inches (610 mm) from the box.
K.
Install metal channel racks for mounting cabinets, panelboards; disconnect switches, control
enclosures, pull and junction boxes, transformers, and other devices unless components are
mounted directly to structural elements of adequate strength. Field galvanize galvanized
members that have been field cut.
L.
Install sleeves for cable and raceway penetrations of concrete slabs and walls unless core-drilled
holes are used. Install sleeves for cable and raceway penetrations of masonry and fire-rated
gypsum walls and of all other fire-rated floor and wall assemblies. Install sleeves during
erection of concrete and masonry walls. Sleeves shall be PVC.
M.
Securely fasten electrical items and their supports to the building structure, unless otherwise
indicated. Perform fastening according to the following unless other fastening methods are
indicated:
1.
2.
3.
4.
5.
6.
Wood: Fasten with wood screws or screw-type nails.
Masonry: Toggle bolts on hollow masonry units and expansion bolts on solid masonry
units.
New Concrete: Concrete inserts with machine screws and bolts.
Existing Concrete: Expansion bolts.
Instead of expansion bolts, threaded studs driven by a powder charge and provided with
lock washers may be used in existing concrete.
Steel: Welded threaded studs or spring-tension clamps on steel.
a.
7.
8.
3.4
Field Welding: No field welding of supports to structural members will be allowed.
Light Steel: Sheet-metal screws. Do not penetrate outer skin of building from within.
Fasteners: Select so the load applied to each fastener does not exceed 25 percent of its
proof-test load.
IDENTIFICATION MATERIALS AND DEVICES
A.
Install at locations for most convenient viewing without interference with operation and
maintenance of equipment. Sleeve type wiring labels shall be installed on all wires in cabinets,
control panels, AFD's, MCC's, SCADA systems, PLC's and field devices at the point of
termination.
BASIC ELECTRICAL MATERIALS AND METHODS
260500-7
B.
Coordinate names, abbreviations, colors, and other designations used for electrical identification
with corresponding designations indicated in the Contract Documents or required by codes and
standards. Use consistent designations throughout Project.
C.
Self-Adhesive Identification Products: Clean surfaces before applying.
D.
Tag and label circuits designated to be extended in the future. Identify source and circuit
numbers in each cabinet, pull and junction box, and outlet box. Color-coding may be used for
voltage and phase identification.
E.
Install continuous underground plastic markers during trench backfilling, for exterior
underground power, control, signal, and communication lines located directly above power and
communication lines. Locate 6 to 8 inches (150 to 200 mm) below finished grade. If width of
multiple lines installed in a common trench or concrete envelope does not exceed 16 inches
(400 mm), overall, use a single line marker.
F.
Color-code 208/120-V, three phase system secondary service, feeder, and branch-circuit
conductors throughout the secondary electrical system as follows:
1.
2.
3.
G.
Phase A: Black.
Phase B: Red.
Phase C: Blue.
Color-code 480/277-V system secondary service, feeder, and branch-circuit conductors
throughout the secondary electrical system as follows:
1.
2.
3.
Phase A: Yellow.
Phase B: Brown.
Phase C: Orange.
H.
Install warning, caution, and instruction signs where required to comply with 29 CFR,
Chapter XVII, Part 1910.145, and where needed to ensure safe operation and maintenance of
electrical systems and of items to which they connect. Install engraved plastic-laminated
instruction signs with approved legend where instructions are needed for system or equipment
operation.
I.
Install engraved-laminated signs with white letters on black background with minimum 3/8inch- (9-mm-) high lettering for equipment designations for panelboards and motor control
centers or description of load being fed or controlled in the case of disconnects, contactors, or
motor control units.
3.5
FIRESTOPPING
A.
Apply firestopping to cable and raceway penetrations of fire-rated floor and wall assemblies to
achieve fire-resistance rating of the assembly. Firestopping materials shall be fire resistant per
ASTM E119 fire test conditions and shall be non-combustible when tested per ASTM E136.
Melting point shall exceed 2000 degrees F. per ASTM C24. Fireproofing installation for
openings in rated floors or partitions shall provide an airtight seal.
BASIC ELECTRICAL MATERIALS AND METHODS
260500-8
3.6
CONCRETE BASES
A.
3.7
Construct concrete bases of dimensions indicated, but not less than 4 inches (100 mm) larger, in
both directions, than supported unit. Follow supported equipment manufacturer's anchorage
recommendations and setting templates for anchor-bolt and tie locations, unless otherwise
indicated. Use 3000-psi (20.7-MPa), 28-day compressive-strength concrete and reinforcement
as specified in Section, "Concrete, Mortar and Related Material" and Section, "Concrete
Reinforcement."
EQUIPMENT AND CONTROL WIRING
A.
Wire in and connect every motor and item of equipment furnished as a part of this contract,
including those furnished under other Divisions. Provide all required disconnecting means,
boxes, conduit, conductors, etc. Motors and equipment furnished under other Divisions will be
installed under that Division.
B.
Adjustable frequency drives shall be provided under Section 333201.
C.
Control Wiring: Provide all control and interlock wiring.
power.
3.8
Run in raceway separate from
DEMOLITION
A.
Protect existing electrical equipment and installations not indicated to be removed. If damaged
or disturbed in the course of the Work, remove damaged portions and install new products of
equal capacity, quality, appearance and functionality.
B.
Accessible Work: Remove exposed electrical equipment and installations, indicated to be
demolished, in their entirety.
C.
Abandoned Work: Cut and remove buried raceway and wiring, indicated to be abandoned in
place, 2 inches (50 mm) below the surface of adjacent construction. Cap raceways and patch
surface to match existing finish.
D.
Existing Work to Remain: Maintain feed, or provide new feed to equipment and devices that
are not being removed.
E.
Remove demolished material from Project site.
F.
Remove, store, clean, reinstall, reconnect, and make operational components indicated for
relocation.
G.
Interruption of Existing Electric Service: Do not interrupt feed to any service, feeder or branch
circuit feeding facilities occupied by Owner or others unless permitted under the following
conditions and then only after arranging to provide temporary electric service where required
according to requirements indicated:
1.
Notify Owner no fewer than seven days in advance of proposed interruption of electrical
service.
BASIC ELECTRICAL MATERIALS AND METHODS
260500-9
2.
3.9
Do not proceed with interruption of electrical service without Owner's written
permission.
CUTTING AND PATCHING
A.
Cut, channel, chase, and drill floors, walls, partitions, ceilings, and other surfaces required to
permit electrical installations. Perform cutting by skilled mechanics of trades involved.
B.
Repair and refinish disturbed finish materials and other surfaces to match adjacent undisturbed
surfaces. Install new fireproofing where existing firestopping has been disturbed. Repair and
refinish materials and other surfaces by skilled mechanics of trades involved.
3.10
A.
FIELD QUALITY CONTROL
Inspect installed components for damage and faulty work, including the following:
1.
2.
3.
4.
5.
6.
7.
3.11
A.
REFINISHING AND TOUCHUP PAINTING
Refinish and touch up paint:
1.
2.
3.
4.
3.12
Supporting devices for electrical components.
Electrical identification.
Electricity-metering components.
Concrete bases.
Electrical demolition.
Cutting and patching for electrical construction.
Touchup painting.
Clean damaged and disturbed areas and apply primer, intermediate, and finish coats to
suit the degree of damage at each location.
Follow paint manufacturer's written instructions for surface preparation and for timing
and application of successive coats.
Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer.
Repair damage to PVC or paint finishes with matching touchup coating recommended by
manufacturer.
CLEANING AND PROTECTION
A.
On completion of installation, including outlets, fittings, and devices, inspect exposed finish.
Remove burrs, dirt, paint spots, and construction debris.
B.
Protect equipment and installations and maintain conditions to ensure that coatings, finishes,
and cabinets are without damage or deterioration at time of Substantial Completion.
END OF SECTION 260500
BASIC ELECTRICAL MATERIALS AND METHODS
260500-10
SECTION 260519 - CONDUCTORS AND CABLES
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport's "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
1.3
This Section includes building wires and cables and associated connectors, splices, and
terminations for wiring systems rated 600 V and less.
SUBMITTALS
A.
1.4
Field Quality-Control Test Reports: From Contractor.
QUALITY ASSURANCE
A.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
B.
Comply with NFPA 70 (2011).
1.5
WARRANTY
A.
Special Warranty for Conductors and Cables: Manufacturer's standard form in which
manufacturer of Conductors and Cables agrees to repair or replace components of Conductors
and Cables that fail in materials or workmanship within specified warranty period.
1.
Warranty Period for Conductors and Cables: 10 years from date of Substantial
Completion. Full warranty shall apply for first year and prorated warranty for the
remaining nine years.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
In other Part 2 Articles where subparagraph titles below introduce lists, the following
requirements apply for product selection:
CONDUCTORS AND CABLES
260519-1
1.
2.2
Manufacturers: Subject to compliance with requirements, provide products by the
manufacturers specified.
CONDUCTORS AND CABLES
A.
Manufacturers:
1.
2.
3.
4.
American Insulated Wire Corp.; a Leviton Company.
General Cable Corporation.
Senator Wire & Cable Company.
Southwire Company.
B.
Refer to Part 3 "Conductor and Insulation Applications" Article for insulation type, cable
construction, and ratings.
C.
Conductor Material: Copper complying with NEMA WC 5 or 7; stranded or solid conductor
for No. 10 AWG and smaller, stranded for No. 8 AWG and larger.
D.
Conductor Insulation Types:
NEMA WC 5 or 7 as applicable.
2.3
Type THHN-THWN, XHHW or USE complying with
CONNECTORS AND SPLICES
A.
Manufacturers:
1.
2.
3.
4.
5.
6.
B.
AFC Cable Systems, Inc.
AMP Incorporated/Tyco International.
Hubbell/Anderson.
O-Z/Gedney; EGS Electrical Group LLC.
3M Company; Electrical Products Division.
Ideal
Description: Factory-fabricated connectors and splices of size, ampacity rating, material, type,
and class for application and service indicated. Push in splice and insulation displacement type
connectors shall not be used.
PART 3 - EXECUTION
3.1
CONDUCTOR AND INSULATION APPLICATIONS
A.
Service Entrance, Feeders and Branch Circuits: Type THHN-THWN, XHHW or USE single
conductors in raceway. Minimum size #12 AWG or larger where required for voltage drop.
Where branch circuits exceed 100 feet in length, use minimum #10 AWG. Conductors shall be
stranded, except #10 and #12 branch circuits shall be solid.
B.
Fire Alarm Circuits: Type THHN-THWN, in raceway or Power-limited, fire-protective,
signaling circuit cable in raceways. Size as recommended by equipment manufacturer or as
specified in fire alarm specifications.
CONDUCTORS AND CABLES
260519-2
C.
Class 1 Control Circuits: Type THHN-THWN, in raceway. Minimum size #14 AWG.
D.
Class 2 Control Circuits: Type THHN-THWN, in raceway or Power-limited cable in raceways.
Size as recommended by equipment manufacturer.
3.2
INSTALLATION
A.
Run all conductors in raceways unless specifically indicated otherwise.
B.
Use manufacturer-approved pulling compound or lubricant where necessary; compound used
must not deteriorate conductor or insulation. Do not exceed manufacturer's recommended
maximum pulling tensions and sidewall pressure values.
C.
Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable grips, that will
not damage cables or raceway.
D.
Seal around cables penetrating fire-rated elements according to Division 7.
E.
Identify and color-code conductors and cables according to Division 26 Section 26 05 00,
"Basic Electrical Materials and Methods."
F.
No more than three current carrying phase conductors (excluding switch legs and grounding
conductors), and one grounded conductor, may be installed in any raceway.
G.
Provide grounding conductor in all feeders and branch circuits.
3.3
CONNECTIONS
A.
Tighten electrical connectors and terminals according to manufacturer's published torquetightening values. If manufacturer's torque values are not indicated, use those specified in
UL 486A and UL 486B.
B.
Make splices and taps that are compatible with conductor material and that possess equivalent
or better mechanical strength and insulation ratings than unspliced conductors.
C.
Wiring at Outlets: Install conductor at each outlet, with at least 6 inches (150 mm) of slack.
3.4
FIELD QUALITY CONTROL
A.
Testing: Perform the following field quality-control testing:
1.
2.
B.
After installing conductors and cables and before electrical circuitry has been energized,
test for compliance with requirements.
Perform each electrical test and visual and mechanical inspection stated in NETA ATS,
Section 7.3.1. Certify compliance with test parameters.
Test Reports: Prepare a written report to record the following:
1.
Test procedures used.
CONDUCTORS AND CABLES
260519-3
2.
3.
Test results that comply with requirements.
Test results that do not comply with requirements and corrective action taken to achieve
compliance with requirements.
END OF SECTION 260519
CONDUCTORS AND CABLES
260519-4
SECTION 260526 - GROUNDING AND BONDING
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
1.3
This Section includes grounding of electrical systems and equipment. Grounding requirements
specified in this Section may be supplemented by special requirements of systems described in
other Sections.
SUBMITTALS
A.
Product Data: For each type of product indicated.
B.
Product Data: For the following:
1.
Ground rods.
C.
Qualification Data: For firms and persons specified in "Quality Assurance" Article.
D.
Field Test Reports: Submit written test reports to include the following:
1.
2.
3.
1.4
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.
QUALITY ASSURANCE
A.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70
(2011), Article 100, by a testing agency acceptable to authorities having jurisdiction, and
marked for intended use.
1.
1.5
Comply with UL 467.
WARRANTY
A.
Special Warranty for Grounding and Bonding Components: Manufacturer's standard form in
which the manufacturer of Grounding and Bonding Components agrees to repair or replace
components of Grounding and Bonding Components that fail in materials or workmanship
within specified warranty period.
GROUNDING AND BONDING
260526-1
1.
Warranty Period for Grounding and Bonding Components: 10 years from date of
Substantial Completion. Full warranty shall apply for first year, and prorated warranty
for the remaining nine years.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1.
Grounding Conductors, Cables, Connectors, and Rods:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
2.2
Apache Grounding/Erico Inc.
Chance/Hubbell.
Copperweld Corp.
Erico Inc.; Electrical Products Group.
Ideal Industries, Inc.
ILSCO.
Kearney/Cooper Power Systems.
O-Z/Gedney Co.; a business of the EGS Electrical Group.
Raco, Inc.; Division of Hubbell.
Thomas & Betts, Electrical.
GROUNDING CONDUCTORS
A.
For insulated conductors, comply with Division 26 Section 260519, "Conductors and Cables."
B.
Material: Copper.
C.
Equipment Grounding Conductors: Insulated with green-colored insulation.
D.
Bare Copper Conductors: Comply with the following:
1.
2.3
Solid Conductors: ASTM B 3.
CONNECTOR PRODUCTS
A.
Comply with IEEE 837 and UL 467; listed for use for specific types, sizes, and combinations of
conductors and connected items.
B.
Bolted Connectors: Bolted-pressure-type connectors, or compression type.
C.
Twist-on Connectors: Plastic body with coiled copper alloy wire forming threads.
D.
Welded Connectors: Exothermic-welded type, in kit form, and selected per manufacturer's
written instructions.
GROUNDING AND BONDING
260526-2
E.
2.4
Underground Mechanical Connectors:
underground applications.
Bolted-pressure type or compression type, listed for
GROUNDING ELECTRODES
A.
Ground Rods: Copper-clad steel.
B.
Ground Rods: Sectional type; copper-clad steel.
1.
Size: 3/4 by 120 inches (19 by 3000 mm) in diameter.
PART 3 - EXECUTION
3.1
APPLICATION
A.
Use only copper conductors for both insulated and bare grounding conductors in direct contact
with earth, concrete, masonry, crushed stone, and similar materials.
B.
In raceways, use insulated equipment grounding conductors.
C.
Exothermic-Welded Connections: Use for connections to structural steel and for underground
connections, except those at test wells.
D.
Equipment Grounding Conductor Terminations: Use bolted clamp type or compression
connectors for conductors larger than 10 AWG. Use Plastic body twist-on connectors for
10AWG and smaller.
3.2
EQUIPMENT GROUNDING CONDUCTORS
A.
Comply with NFPA 70, Article 250, for types, sizes, and quantities of equipment grounding
conductors, unless specific types, larger sizes, or more conductors than required by NFPA 70
are indicated.
B.
Install equipment grounding conductors in all feeders and circuits.
3.3
INSTALLATION
A.
Ground Rods:
1.
2.
Drive ground rods until tops are 2 inches (50 mm) below finished floor or final grade,
unless otherwise indicated.
Electrical Service Grounding Electrode Applications: Install at least three rods spaced at
least one-rod length from each other and located at least the same distance from other
grounding electrodes; install in as straight line as conditions permit. Interconnect ground
rods with grounding electrode conductors. Use exothermic welds. Make connections
without exposing steel or damaging copper coating.
GROUNDING AND BONDING
260526-3
B.
Grounding Conductors: Route along shortest and straightest paths possible, unless otherwise
indicated. Avoid obstructing access or placing conductors where they may be subjected to
strain, impact, or damage.
C.
Bonding Straps and Jumpers: Install so vibration by equipment mounted on vibration isolation
hangers and supports is not transmitted to rigidly mounted equipment. Use exothermic-welded
connectors for outdoor locations, unless a disconnect-type connection is required; then, use a
bolted clamp. Bond straps directly to the basic structure taking care not to penetrate any
adjacent parts. Install straps only in locations accessible for maintenance.
D.
Metal Water Service Pipe: Provide insulated copper grounding conductors, in conduit, from
building's main service equipment, or grounding bus, to main metal water service entrances to
building. Connect grounding conductors to main metal water service pipes by grounding clamp
connectors. Where a dielectric main water fitting is installed, connect grounding conductor to
street side of fitting. Bond metal grounding conductor conduit or sleeve to conductor at each
end.
3.4
CONNECTIONS
A.
General: Make connections so galvanic action or electrolysis possibility is minimized. Select
connectors, connection hardware, conductors, and connection methods so metals in direct
contact will be galvanically compatible.
1.
2.
3.
Use electroplated or hot-tin-coated materials to ensure high conductivity and to make
contact points closer to order of galvanic series.
Make connections with clean, bare metal at points of contact.
Coat and seal connections having dissimilar metals with inert material to prevent future
penetration of moisture to contact surfaces.
B.
Exothermic-Welded Connections: Comply with manufacturer's written instructions. Welds that
are puffed up or that show convex surfaces indicating improper cleaning are not acceptable.
C.
Equipment Grounding Conductor Terminations: For No. 8 AWG and larger, use pressure-type
grounding lugs. No. 10 AWG and smaller grounding conductors may be terminated with
winged pressure-type connectors.
D.
Noncontact Metal Raceway Terminations: If metallic raceways terminate at metal housings
without mechanical and electrical connection to housing, terminate each conduit with a
grounding bushing. Connect grounding bushings with a bare grounding conductor to grounding
bus or terminal in housing. Bond electrically noncontinuous conduits at entrances and exits
with grounding bushings and bare grounding conductors, unless otherwise indicated.
E.
Tighten screws and bolts for grounding and bonding connectors and terminals according to
manufacturer's published torque-tightening values. If manufacturer's torque values are not
indicated, use those specified in UL 486A.
F.
Compression-Type Connections: Use hydraulic compression tools to provide correct
circumferential pressure for compression connectors. Use tools and dies recommended by
connector manufacturer. Provide embossing die code or other standard method to make a
visible indication that a connector has been adequately compressed on grounding conductor.
GROUNDING AND BONDING
260526-4
G.
3.5
Moisture Protection: If insulated grounding conductors are connected to ground rods or
grounding buses, insulate entire area of connection and seal against moisture penetration of
insulation and cable.
FIELD QUALITY CONTROL
A.
Testing: Perform the following field quality-control testing:
1.
2.
3.
After installing grounding system but before permanent electrical circuitry has been
energized, test for compliance with requirements.
Test completed grounding system at each location where a maximum ground-resistance
level is specified and at service disconnect enclosure grounding terminal. Measure
ground resistance not less than two full days after the last trace of precipitation, and
without the soil being moistened by any means other than natural drainage or seepage and
without chemical treatment or other artificial means of reducing natural ground
resistance. Perform tests, by the fall-of-potential method according to IEEE 81.
Provide drawings locating each ground rod and ground rod assembly and other grounding
electrodes, identify each by letter in alphabetical order, and key to the record of tests and
observations. Include the number of rods driven and their depth at each location and
include observations of weather and other phenomena that may affect test results.
Describe measures taken to improve test results.
a.
4.
Equipment Rated 500 kVA and Less: 10 ohms.
Excessive Ground Resistance: If resistance to ground exceeds specified values, notify
Civil Engineer promptly and include recommendations to reduce ground resistance.
END OF SECTION 260526
GROUNDING AND BONDING
260526-5
SECTION 260533 - RACEWAYS AND BOXES
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
This Section includes raceways, fittings, boxes, enclosures, and cabinets for electrical wiring.
B.
Related Sections include the following:
1.
2.
1.3
Division 26 Section 260500, "Basic Electrical Materials and Methods," for supports,
anchors, and identification products.
Division 26 Section 262726, "Wiring Devices," for devices installed in boxes and for
floor-boxes.
DEFINITIONS
A.
RSC: Rigid steel conduit.
B.
IMC: Intermediate metal conduit.
C.
LFMC: Liquidtight flexible metal conduit.
D.
RNC: Rigid nonmetallic conduit.
E.
Fixture Whip: Flexible wiring as specified from box to individual lighting fixture.
1.4
SUBMITTALS
A.
1.5
Product Data: For PVC-coated IMC, PVC-coated RSC, PVC-coated fittings, PVC-coated cast
metal outlet boxes, small pull/junction boxes, enclosures, and cabinets.
QUALITY ASSURANCE
A.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
B.
Comply with NFPA 70 (2011).
RACEWAYS AND BOXES
260533-1
1.6
WARRANTY
A.
Special Warranty for Raceways and Boxes: Manufacturer's standard form in which the
manufacturer of Raceways and Boxes agrees to repair or replace components of Raceways and
Boxes that fail in materials or workmanship within specified warranty period.
1.
1.7
Warranty Period for Raceways and Boxes: 10 years from date of Substantial
Completion. Full warranty shall apply for first year, and prorated warranty for the
remaining nine years.
COORDINATION
A.
Coordinate layout and installation of raceways, boxes, enclosures, cabinets, and suspension
system with other construction.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
In other Part 2 articles where subparagraph titles below introduce lists, the following
requirements apply for product selection:
1.
2.2
Manufacturers: Subject to compliance with requirements, provide products by the
manufacturers specified.
METAL CONDUIT
A.
Manufacturers:
1.
2.
3.
4.
Kor kap.
Oscal.
Perma-Cote.
Plasti-Bond.
B.
Plastic-Coated RSC and Fittings: NEMA RN 1 with 40 mil exterior PVC coating and 2 mil
interior urethane coating.
C.
Plastic-Coated IMC and Fittings: NEMA RN 1 with 40 mil exterior PVC coating and 2 mil
interior urethane coating.
D.
LFMC: Flexible steel conduit with PVC jacket.
2.3
NONMETALLIC CONDUIT
A.
Manufacturers:
1.
American International.
RACEWAYS AND BOXES
260533-2
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Anamet Electrical, Inc.; Anaconda Metal Hose.
Arnco Corp.
Cantex Inc.
Certainteed Corp.; Pipe & Plastics Group.
Condux International.
ElecSYS, Inc.
Lamson & Sessions; Carlon Electrical Products.
Manhattan/CDT/Cole-Flex.
RACO; Division of Hubbell, Inc.
Thomas & Betts Corporation.
B.
RNC: NEMA TC 2, Schedule 40 and Schedule 80 PVC.
C.
RNC Fittings: NEMA TC 3; match to conduit or tubing type and material.
2.4
BOXES, ENCLOSURES, AND CABINETS
A.
Manufacturers:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
B-Line; Div. of Cooper Industries
Cooper Crouse-Hinds; Div. of Cooper Industries, Inc.
Emerson/General Signal; Appleton Electric Company.
Erickson Electrical Equipment Co.
Hoffman.
Hubbell, Inc.; Killark Electric Manufacturing Co.
Kor Kap
Ocal
Perma-Cote
Plasti-Bond
Saginaw
Stahlin
Wiegmann
B.
Cast-Metal Outlet and Device Boxes: NEMA FB 1, Type FD with 40 mil PVC coating and
with gasketed cover.
C.
Small Stainless Steel or Fiberglass Reinforced Polyester Pull and Junction Boxes: NEMA 250.
D.
Cast-Metal Pull and Junction Boxes: NEMA FB 1, copper-free cast aluminum with 40 mil PVC
coating and with gasketed cover.
E.
Stainless Steel or Fiberglass Reinforced Polyester Enclosures: NEMA 250, Type 4X or 6P as
indicated or required, with continuous hinge cover and accessories as indicated or specified.
F.
Cabinets: NEMA 250, Type 12, galvanized steel box with removable interior panel and
removable front, finished inside and out with manufacturer's standard enamel. Hinged door in
front cover with flush latch and concealed hinge. Key latch to match panelboards. Include
metal barriers to separate wiring of different systems and voltage and include accessory feet
where required for freestanding equipment.
RACEWAYS AND BOXES
260533-3
PART 3 - EXECUTION
3.1
RACEWAY APPLICATION
A.
Use the following raceways for outdoor installations:
1.
2.
3.
4.
5.
6.
B.
Exposed: PVC-coated RSC.
Concealed: PVC-coated RSC.
Underground, Single Run: RNC.
Underground, Grouped: RNC.
Connection to Vibrating Equipment: LFMC.
Boxes and Enclosures: NEMA 250, Type 4x unless otherwise indicated.
Use the following raceways for indoor installations:
1.
2.
3.
4.
Exposed in finished areas: PVC-coated RSC.
Concealed: PVC-coated RSC.
Connection to Vibrating Equipment: LFMC.
Boxes and Enclosures: NEMA 250, Type 12, unless otherwise indicated.
C.
Minimum Raceway Size: 1/2 inch trade size (16 mm) unless noted.
D.
Raceway Fittings: Compatible with raceways and suitable for use and location.
1.
3.2
PVC Externally Coated, PVC-coated RSC: Use only fittings approved for use with that
material. Patch all nicks and scrapes in PVC coating after installing conduits.
INSTALLATION
A.
Keep raceways at least 6 inches (150 mm) away from parallel runs of flues and steam or hotwater pipes. Install horizontal raceway runs above water and steam piping.
B.
Independently support all equipment and raceways directly from structural elements.
C.
Complete raceway installation before starting conductor installation.
D.
Support raceways as specified in Division 26 Section 260500, "Basic Electrical Materials and
Methods." Use PVC-coated straps and hangers with PVC-coated IMC and RSC.
E.
Install temporary closures to prevent foreign matter from entering raceways.
F.
Protect stub-ups from damage where conduits rise through floor slabs. Arrange so curved
portions of bends are not visible above the finished slab.
G.
Make bends and offsets so ID is not reduced. Keep legs of bends in the same plane and keep
straight legs of offsets parallel, unless otherwise indicated.
H.
Raceways Embedded in Slabs: Install in middle 1/3 of slab thickness where practical and leave
at least 2 inches (50 mm) of concrete cover.
RACEWAYS AND BOXES
260533-4
1.
2.
3.
4.
I.
Install exposed raceways parallel or at right angles to nearby surfaces or structural members and
follow surface contours as much as possible.
1.
2.
J.
Run parallel or banked raceways together on common supports.
Make parallel bends in parallel or banked runs. Use factory elbows only where elbows
can be installed parallel; otherwise, provide field bends for parallel raceways.
Join raceways with fittings designed and approved for that purpose and make joints tight.
1.
Use insulating bushings to protect conductors.
K.
Tighten set screws of threadless fittings with suitable tools.
L.
Terminations:
1.
2.
3.3
Secure raceways to reinforcing rods to prevent sagging or shifting during concrete
placement.
Space raceways laterally to prevent voids in concrete.
Run conduit larger than 1 inch trade size (DN 27) parallel or at right angles to main
reinforcement. Where at right angles to reinforcement, place conduit close to slab
support.
Change from nonmetallic tubing to rigid steel conduit or IMC before rising above the
floor.
Where raceways are terminated with locknuts and bushings, align raceways to enter
squarely and install locknuts with dished part against box. Use two locknuts, one inside
and one outside box.
Where raceways are terminated with threaded hubs, screw raceways or fittings tightly
into hub so end bears against wire protection shoulder. Where chase nipples are used,
align raceways so coupling is square to box; tighten chase nipple so no threads are
exposed.
M.
Install pull wires in empty raceways. Use polypropylene or monofilament plastic line with not
less than 200 lb (90 kg) tensile strength. Leave at least 12 inches (300 mm) of slack at each end
of pull wire.
N.
Stub-up Connections: Extend conduits through concrete floor for connection to freestanding
equipment. Install with an adjustable top or coupling threaded inside for plugs set flush with
finished floor. Extend conductors to equipment with rigid steel conduit; FMC may be used
6 inches (150 mm) above the floor. Install screwdriver-operated, threaded plugs flush with
floor for future equipment connections.
O.
Flexible Connections: Use maximum of 12 inches (35 mm) of LFMC for equipment subject to
vibration, noise transmission, or movement; and for all motors. Install separate ground
conductor across flexible connections.
P.
Install outlet boxes, enclosures and cabinets plumb. Support at each corner.
PROTECTION
RACEWAYS AND BOXES
260533-5
A.
Provide final protection and maintain conditions that ensure coatings, finishes, and cabinets are
without damage or deterioration at time of Substantial Completion.
1.
2.
3.4
Repair damage to galvanized finishes with zinc-rich paint recommended by
manufacturer.
Repair damage to PVC or paint finishes with matching touchup coating recommended by
manufacturer.
CLEANING
A.
After completing installation of exposed, factory-finished raceways and boxes, inspect exposed
finishes and repair damaged finishes.
END OF SECTION 260533
RACEWAYS AND BOXES
260533-6
SECTION 262200 - DRY-TYPE TRANSFORMERS (600 V AND LESS)
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
This Section includes the following types of dry-type transformers rated 600 V and less, with
capacities up to 1000 kVA:
1.
1.3
Distribution transformers.
SUBMITTALS
A.
Product Data Include rated nameplate data, capacities, weights, dimensions, minimum
clearances, installed devices and features, and performance for each type and size of
transformer indicated.
B.
Shop Drawings: Wiring and connection diagrams.
C.
Source quality-control test reports.
D.
Output Settings Reports: Record of tap adjustments specified in Part 3.
1.4
QUALITY ASSURANCE
A.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
B.
Comply with IEEE C 57.12.91.
C.
Energy-Efficient Transformers Rated 15 kVA and Larger: Certified as meeting NEMA TP 1,
Class 1 efficiency levels when tested according to NEMA TP 2.
D.
Comply with NFPA 70 (2011).
DRY-TYPE TRANSFORMERS (600 V AND LESS)
262200-1
1.5
COORDINATION
A.
Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases. Concrete,
reinforcement, and formwork requirements are City of Shreveport Specification 606, "Concrete
Reinforcement."
B.
Coordinate installation of wall-mounting and structure-hanging supports.
1.6
WARRANTY
A.
Special Warranty for Dry-Type Transformers: Manufacturer's standard form in which the
manufacturer of Dry-Type Transformers agrees to repair or replace components of Dry-Type
Transformers that fail in materials or workmanship within specified warranty period.
1.
Warranty Period for Dry-Type Transformers: 10 years from date of Substantial
Completion. Full warranty shall apply for first year, and prorated warranty for the
remaining nine years.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1.
2.
3.
4.
5.
6.
7.
2.2
Acme Electric Corporation; Power Distribution Products Division.
Cutler-Hammer. Type EPT, DT-3.
GE Electrical Distribution & Control. "Q" Series.
Hammond Co.; Matra Electric, Inc.
Jefferson Electric, Inc.
Siemens Energy & Automation, Inc.
Square D/Groupe Schneider NA. Type GPT.
MATERIALS
A.
Description: Factory-assembled and -tested, air-cooled units for 60-Hz service.
B.
Cores: Grain-oriented, non-aging silicon steel.
C.
Coils: Continuous windings without splices, except for taps.
1.
2.
2.3
Internal Coil Connections: Brazed or pressure type.
Coil Material: Copper.
DISTRIBUTION TRANSFORMERS
A.
Comply with NEMA ST 20, and list and label as complying with UL 1561.
DRY-TYPE TRANSFORMERS (600 V AND LESS)
262200-2
B.
Cores: One leg per phase.
C.
Enclosure: Ventilated, dripproof, NEMA 250, Type 2.
D.
Indoor Transformer Enclosure Finish:
Protection."
1.
Comply with NEMA 250 for "Indoor Corrosion
Finish Color: Gray.
E.
Insulation Class: 220 degrees C, UL-component-recognized insulation system with a maximum
of 150 degrees C rise above 40 degrees C ambient temperature.
F.
Taps for Transformers 7.5 to 24 kVA: One 5 percent tap above and one 5 percent tap below
normal full capacity.
G.
Taps for Transformers 25 kVA and Larger: Two 2.5 percent taps above and two 2.5 percent
taps below normal full capacity.
H.
Wall Brackets: Manufacturer's standard brackets.
I.
Fungus Proofing: Permanent fungicidal treatment for coil and core.
J.
Low-Sound-Level Requirements: Minimum of 3 dBA less than NEMA ST 20 standard sound
levels when factory tested according to IEEE C57.12.91.
2.4
SOURCE QUALITY CONTROL
A.
Test and inspect transformers according to IEEE C57.12.91.
B.
Factory Sound-Level Tests: Conduct sound-level tests on equipment for this project.
PART 3 - EXECUTION
3.1
EXAMINATION
A.
Examine conditions for compliance with enclosure- and ambient-temperature requirements for
each transformer.
B.
Verify that field measurements are as needed to maintain working clearances required by
NFPA 70 and manufacturer's written instructions.
C.
Examine walls and floors for suitable mounting conditions where transformers will be installed.
D.
Proceed with installation only after unsatisfactory conditions have been corrected.
3.2
INSTALLATION
A.
Install floor-mounting transformers level on concrete bases.
DRY-TYPE TRANSFORMERS (600 V AND LESS)
262200-3
1.
3.3
Anchor transformers to concrete bases according to manufacturer's written instructions,
seismic codes at project.
CONNECTIONS
A.
Ground equipment according to Division 26 Section 26 05 26, "Grounding and Bonding."
B.
Connect wiring according to Division 26 Section 26 05 19,"Conductors and Cables."
C.
Tighten electrical connectors and terminals according to manufacturer's published torquetightening values. If manufacturer's torque values are not indicated, use those specified in
UL 486A and UL 486B.
3.4
ADJUSTING
A.
Record transformer secondary voltage at each unit for at least 48 hours of typical occupancy
period. Adjust transformer taps to provide optimum voltage conditions at secondary terminals.
Optimum is defined as not exceeding nameplate voltage plus 10 percent and not being lower
than nameplate voltage minus 5 percent. Submit recording and tap settings as test results.
B.
Output Settings Report: Prepare a written report recording output voltages and tap settings.
END OF SECTION 262200
DRY-TYPE TRANSFORMERS (600 V AND LESS)
262200-4
SECTION 262416 - PANELBOARDS
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
This Section includes the following:
1.
2.
B.
Related Sections include the following:
1.
1.3
Distribution panelboards.
Lighting and appliance branch-circuit panelboards with intergral transformers.
Division 26 Section 264313, "Transient Voltage Suppression."
DEFINITIONS
A.
1.4
GFCI: Ground-fault circuit interrupter.
SUBMITTALS
A.
Product Data: For each type of panelboard, overcurrent protective device, transient voltage
suppression device, accessory, and component indicated.
Include dimensions and
manufacturers' technical data on features, performance, electrical characteristics, ratings, and
finishes.
B.
Shop Drawings: For each panelboard and related equipment.
1.
Dimensioned plans, elevations, sections, and details. Show tabulations of installed
devices, equipment features, and ratings. Include the following:
a.
b.
c.
d.
e.
2.
C.
Enclosure types and details for types other than NEMA 250, Type 1.
Bus configuration, current, and voltage ratings.
Short-circuit current rating of panelboards and overcurrent protective devices.
UL listing for series rating of installed devices.
Features, characteristics, ratings, and factory settings of individual overcurrent
protective devices and auxiliary components.
Wiring Diagrams: Power, signal, and control wiring.
Qualification Data: For testing agency.
PANELBOARDS
262416-1
D.
Field quality-control test reports including the following:
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.
E.
Panelboard Schedules:
balancing.
F.
Operation and Maintenance Data: For panelboards and components to include in emergency,
operation, and maintenance manuals. In addition to items specified in Division 1, include the
following:
1.
2.
1.5
For installation in panelboards. Submit final versions after load
Manufacturer's written instructions for testing and adjusting overcurrent protective
devices.
Time-current curves, including selectable ranges for each type of overcurrent protective
device.
QUALITY ASSURANCE
A.
Source Limitations: Obtain panelboards, overcurrent protective devices, components, and
accessories through one source from a single manufacturer.
B.
Product Options: Drawings indicate size, profiles, and dimensional requirements of
panelboards and are based on the specific system indicated. Refer to Division 1 Section
"Material and Equipment."
C.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
D.
Comply with NEMA PB 1.
E.
Comply with NFPA 70 (2011).
1.6
PROJECT CONDITIONS
A.
Environmental Limitations: Rate equipment for continuous operation under the following
conditions, unless otherwise indicated:
1.
2.
B.
Ambient Temperature: Not exceeding 104 degrees F.
Altitude: Not exceeding 6600 feet.
Service Conditions: NEMA PB 1, usual service conditions, as follows:
1.
2.
Ambient temperatures within limits specified.
Altitude not exceeding 6600 feet.
PANELBOARDS
262416-2
C.
Interruption of Existing Electric Service: Do not interrupt electric service to facilities occupied
by Owner or others unless permitted under the following conditions and then only after
arranging to provide temporary electric service according to requirements indicated:
1.
2.
1.7
Notify Owner no fewer than seven days in advance of proposed interruption of electrical
service.
Do not proceed with interruption of electrical service without Owner's written
permission.
COORDINATION
A.
Coordinate layout and installation of panelboards and components with other construction that
penetrates walls or is supported by them, including electrical and other types of equipment,
raceways, piping, and encumbrances to workspace clearance requirements.
B.
Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases. Concrete,
reinforcement, and formwork requirements are specified in City of Shreveport Specification
606 "Concrete Reinforcements."
1.8
EXTRA MATERIALS
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.
1.9
Keys: Six spares for each type of panelboard cabinet lock.
WARRANTY
A.
Special Warranty for Panelboards: Manufacturer's standard form in which the manufacturer of
Panelboards agrees to repair or replace components of Panelboards that fail in materials or
workmanship within specified warranty period.
1.
Warranty Period for Panelboards: 10 years from date of Substantial Completion. Full
warranty shall apply for first year, and prorated warranty for the remaining nine years.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
Manufacturers: In other Part 2 Articles where titles below introduce lists, the following
requirements apply to product selection:
1.
Products:
specified.
PANELBOARDS
Subject to compliance with requirements, provide one of the products
262416-3
2.2
MANUFACTURED UNITS
A.
Enclosures: Surface-mounted cabinets. NEMA PB 1, NEMA 250 Type 12.
1.
2.
3.
B.
Phase, Neutral, and Ground Buses:
1.
2.
C.
2.3
Material: Hard-drawn copper, 98 percent conductivity.
Equipment Ground Bus: Adequate for feeder and branch-circuit equipment ground
conductors; bonded to box.
Conductor Connectors: Suitable for use with conductor material.
1.
2.
D.
Front: Secured to box with concealed trim clamps. For surface-mounted fronts, match
box dimensions; for flush-mounted fronts, overlap box.
Finish: Manufacturer's standard enamel finish over corrosion-resistant treatment or
primer coat.
Directory Card: With transparent protective cover, mounted in metal frame, inside
panelboard door.
Main and Neutral Lugs: Mechanical type.
Ground Lugs and Bus Configured Terminators: Mechanical type.
Future Devices: Mounting brackets, bus connections, and necessary appurtenances required for
future installation of devices.
PANELBOARD SHORT-CIRCUIT RATING
A.
2.4
Fully rated to interrupt symmetrical short-circuit current available at terminals.
DISTRIBUTION PANELBOARDS
A.
Manufacturers:
specified.
1.
2.
3.
4.
Subject to compliance with requirements, provide one of the products
Eaton: PRL4
General Electric: Spectra
Siemens: P3
Square D: I-Line
B.
Panelbaords: NEMA PB 1, power and feeder distribution type.
C.
Doors: Secured with vault-type latch with tumbler lock; keyed alike.
D.
Mains: Lugs only.
E.
Branch Overcurrent Protective Devices for Circuit-Breaker Frame Sizes 125 A and Smaller:
Plug-in or Bolt-on circuit breakers.
PANELBOARDS
262416-4
F.
2.5
Branch Overcurrent Protective Devices for Circuit-Breaker Frame Sizes Larger Than 125 A:
Bolt on circuit breakers; plug-in circuit breakers where individual positive-locking device
requires mechanical release for removal.
LIGHTING AND APPLIANCE BRANCH-CIRCUIT PANELBOARDS WITH INTERGRAL
TRANSFORMERS
A.
Manufacturers:
specified.
1.
2.
3.
Subject to compliance with requirements, provide one of the products
Eaton: Mini-Power Center.
Siemens: Sentron Power Center.
Square-D: Mini-Power Zone.
B.
Branch Overcurrent Protective Devices:
disturbing adjacent units.
C.
Doors: Concealed hinges; secured with flush latch with tumbler lock; keyed alike.
D.
Transformers: Encapsulated dry-type with 180° C insulation system with 115° C rise and two
5% FCBN taps.
2.6
Plug-in circuit breakers, replaceable without
OVERCURRENT PROTECTIVE DEVICES
A.
Molded-Case Circuit Breaker: UL 489, with interrupting capacity to meet available fault
currents.
1.
B.
Thermal-Magnetic Circuit Breakers: Full module, inverse time-current element for lowlevel overloads, and instantaneous magnetic trip element for short circuits. Tandem or
"piggyback" breakers are not acceptable.
Molded-Case Circuit-Breaker Features and Accessories: Standard frame sizes, trip ratings, and
number of poles.
1.
2.
3.
4.
Lugs: Mechanical style, suitable for number, size, trip ratings, and conductor materials.
Application Listing: Appropriate for application; Type SWD for switching fluorescent
lighting loads; Type HACR for heating, air-conditioning, and refrigerating equipment.
Shunt Trip: 120-V trip coil energized from separate circuit, set to trip at 75 percent of
rated voltage.
Multipole units enclosed in a single housing or factory-assembled to operate as a single
unit.
PART 3 - EXECUTION
3.1
INSTALLATION
A.
Install panelboards and accessories according to NEMA PB 1.1.
PANELBOARDS
262416-5
B.
Mount top of trim 74 inches (1880 mm) above finished floor, unless otherwise indicated.
C.
Mount plumb and rigid without distortion of box. Mount recessed panelboards with fronts
uniformly flush with wall finish.
D.
Install overcurrent protective devices and controllers.
1.
Set field-adjustable switches and circuit-breaker trip ranges.
E.
Install filler plates in unused spaces.
F.
Arrange conductors in gutters into groups and bundle and wrap with wire ties after completing
load balancing.
3.2
IDENTIFICATION
A.
Create a directory to indicate installed circuit loads after balancing panelboard loads. Obtain
approval before installing. Use a computer or typewriter to create directory; handwritten
directories are not acceptable.
B.
Panelboard Nameplates: Label each panelboard with engraved metal or laminated-plastic
nameplate mounted with corrosion-resistant screws.
3.3
CONNECTIONS
A.
Ground equipment according to Division 26 Section 260526, "Grounding and Bonding."
B.
Connect wiring according to Division 26 Section 260519, "Conductors and Cables."
3.4
FIELD QUALITY CONTROL
A.
Load Balancing: After Substantial Completion, but not more than 60 days after Final
Acceptance, measure load balancing and make circuit changes.
1.
2.
3.
4.
Measure as directed during period of normal system loading.
Perform load-balancing circuit changes outside normal occupancy/working schedule of
the facility and at time directed. Avoid disrupting critical 24-hour services such as fax
machines and on-line data processing, computing, transmitting, and receiving equipment.
After circuit changes, recheck loads during normal load period. Record all load readings
before and after changes and submit test records.
Tolerance: Difference exceeding 20 percent between phase loads, within a panelboard, is
not acceptable. Rebalance and recheck as necessary to meet this minimum requirement.
PANELBOARDS
262416-6
3.5
CLEANING
A.
On completion of installation, inspect interior and exterior of panelboards. Remove paint
splatters and other spots. Vacuum dirt and debris; do not use compressed air to assist in
cleaning. Repair exposed surfaces to match original finish.
END OF SECTION 262416
PANELBOARDS
262416-7
SECTION 262726 - WIRING DEVICES
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
This Section includes the following:
1.
2.
3.
4.
5.
6.
1.3
Duplex receptacles.
Single receptacles.
Ground-fault circuit interrupters.
Single- pole switches.
Three way switches.
Device wall plates.
DEFINITIONS
A.
GFCI: Ground-fault circuit interrupter.
B.
EMI: Electromagnetic interference.
1.4
SUBMITTALS
A.
Product Data: For each type of product indicated.
B.
Shop Drawings: List of legends and description of materials and process used for premarking
device plates.
C.
Samples: One for each type of device and plate specified, in each color specified.
D.
Field quality-control test reports.
1.5
QUALITY ASSURANCE
A.
Source Limitations: Obtain each type of wiring device through one source from a single
manufacturer.
B.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
WIRING DEVICES
262726-1
C.
1.6
Comply with NFPA 70 (2011).
COORDINATION
A.
1.7
Receptacles for Owner-Furnished Equipment: Match plug configurations.
WARRANTY
A.
Special Warranty for Wiring Devices: Manufacturer's standard form in which the manufacturer
of Wiring Devices agrees to repair or replace components of Wiring Devices that fail in
materials or workmanship within specified warranty period.
1.
Warranty Period for Wiring Devices: 10 years from date of Substantial Completion. Full
warranty shall apply for first year, and prorated warranty for the remaining nine years.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
Manufacturer: Subject to compliance with requirements, provide products of one of the
following (for each type of wiring device):
1.
Single Pole Toggle Switch, 120-277V, 20A:
a.
b.
c.
2.
Three-Way Toggle Switch, 120-277V, 20A:
a.
b.
c.
3.
Hubbell #HBL5362.
Leviton #5362.
P & S #5362A.
GFCI Receptacles, 125V-1-20A:
a.
b.
c.
5.
Hubbell #HBL1223.
Leviton #1223-2.
P & S #20-AC-3.
Duplex Receptacle, 125V-1-20A:
a.
b.
c.
4.
Hubbell #HBL1221.
Leviton #1221-2.
P & S #20-AC-1.
Hubbell #HBL-GF-5362.
Leviton #8899.
P & S #2091-S.
Motor Rated Switches and Manual Motor Starters:
WIRING DEVICES
262726-2
a.
b.
c.
2.2
General Electric CR101 Series.
Square-D FG or KG Series.
P & S 78XX Series.
DEVICE PLATES
A.
Single and combination types to match corresponding wiring devices.
1.
2.
3.
Plate-Securing Screws: 302 stainless steel.
Material for damp dry locations: 0.035 inch (1mm) thick, satin-finished, Type 302
stainless steel.
Material for Wet Locations: Thermoplastic, with spring-loaded lift cover, and listed and
labeled for use in "wet locations." For receptacles, listing shall apply with plug cap
inserted.
PART 3 - EXECUTION
3.1
INSTALLATION
A.
Install devices and assemblies level, plumb, and square with building lines.
B.
Arrangement of Devices: Unless otherwise indicated, mount flush, with long dimension
vertical, and with grounding terminal of receptacles on top. Group adjacent switches under
single, multigang wall plates.
C.
Remove wall plates and protect devices and assemblies during painting.
3.2
MOUNTING HEIGHTS
A.
Mount toggle switches at 48 inches above finished floor to center of toggle handle.
B.
Mount receptacles 18 inches above finished floor to center of receptacle unless specifically
noted otherwise.
C.
Mount devices above counters at 2 inches from bottom of device to top of counter.
3.3
CONNECTIONS
A.
Ground equipment according to Division 26 Section 260500, "Grounding and Bonding."
B.
Connect wiring according to Division 26 Section 260519, "Conductors and Cables."
C.
Tighten electrical connectors and terminals according to manufacturer's published torquetightening values. If manufacturer's torque values are not indicated, use those specified in
UL 486A and UL 486B.
WIRING DEVICES
262726-3
D.
Do not connect stranded wire to devices using back wired push-in feature.
E.
When terminating stranded conductors on devices, ends of strands shall be contained by
insulation so that all strands must be held by screw.
3.4
FIELD QUALITY CONTROL
A.
Perform the following field tests and inspections and prepare test reports:
1.
2.
B.
After installing wiring devices and after electrical circuitry has been energized, test for
proper polarity, ground continuity, and compliance with requirements.
Test GFCI operation with both local and remote fault simulations according to
manufacturer's written instructions.
Remove malfunctioning units, replace with new units, and retest as specified above.
END OF SECTION 262726
WIRING DEVICES
262726-4
SECTION 262816 - ENCLOSED SWITCHES AND CIRCUIT BREAKERS
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and The 2006 Edition of the City of Shreveport “Standard Specification for
Infrastructure Improvements”, apply to this Section.
SUMMARY
A.
1.3
Section Includes:
1.
Molded-case circuit breakers (MCCBs).
2.
Enclosures.
ACTION SUBMITTALS
A.
Product Data: For each type of enclosed switch, circuit breaker, accessory, and component
indicated. Include dimensioned elevations, sections, weights, and manufacturers' technical data
on features, performance, electrical characteristics, ratings, accessories, and finishes.
1.
2.
3.
4.
1.4
Enclosure types and details for types other than NEMA 250, Type 1.
Current and voltage ratings.
Short-circuit current ratings (interrupting and withstand, as appropriate).
Detail features, characteristics, ratings, and factory settings of individual overcurrent
protective devices, accessories, and auxiliary components.
INFORMATIONAL SUBMITTALS
A.
Qualification Data: For qualified testing agency.
B.
Field quality-control reports.
1.
2.
3.
1.5
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.
CLOSEOUT SUBMITTALS
A.
Operation and Maintenance Data: For enclosed switches and circuit breakers to include in
emergency, operation, and maintenance manuals. In
ENCLOSED SWITCHES AND CIRCUIT BREAKERS
262816-1
1.6
QUALITY ASSURANCE
A.
Source Limitations: Obtain enclosed switches and circuit breakers, overcurrent protective
devices, components, and accessories, within same product category, from single source from
single manufacturer.
B.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by
a qualified testing agency, and marked for intended location and application.
C.
Comply with NFPA 70.
1.7
PROJECT CONDITIONS
A.
Environmental Limitations: Rate equipment for continuous operation under the following
conditions unless otherwise indicated:
1.
2.
B.
Interruption of Existing Electric Service: Do not interrupt electric service to facilities occupied
by Owner or others unless permitted under the following conditions and then only after
arranging to provide temporary electric service according to requirements indicated:
1.
2.
3.
4.
1.8
Ambient Temperature: Not less than minus 22 deg F (minus 30 deg C) and not exceeding
113 deg F (45 deg C).
Altitude: Not exceeding 6600 feet (2010 m).
Notify Architect no fewer than seven days in advance of proposed interruption of electric
service.
Indicate method of providing temporary electric service.
Do not proceed with interruption of electric service without [Architect's written
permission.
Comply with NFPA 70E.
COORDINATION
A.
Coordinate layout and installation of switches, circuit breakers, and components with equipment
served and adjacent surfaces. Maintain required workspace clearances and required clearances
for equipment access doors and panels.
PART 2 - PRODUCTS
2.1
MOLDED-CASE CIRCUIT BREAKERS
A.
Manufacturers:
1.
Eaton Corporation.
2.
General Electric Company.
3.
Siemens Industry, Inc.
B.
General Requirements: Comply with UL 489, NEMA AB 1, and NEMA AB 3, with
interrupting capacity to comply with available fault currents.
ENCLOSED SWITCHES AND CIRCUIT BREAKERS
262816-2
C.
Thermal-Magnetic Circuit Breakers: Inverse time-current element for low-level overloads and
instantaneous magnetic trip element for short circuits. Adjustable magnetic trip setting for
circuit-breaker frame sizes 250 A and larger.
D.
Features and Accessories:
1.
2.
3.
2.2
Standard frame sizes, trip ratings, and number of poles.
Lugs: Mechanical type, suitable for number, size, trip ratings, and conductor material.
Key Interlock Kit: Externally mounted to prohibit circuit-breaker operation; key shall be
removable only when circuit breaker is in off position.
ENCLOSURES
A.
Enclosed Switches and Circuit Breakers: NEMA AB 1, NEMA KS 1, NEMA 250, and UL 50,
to comply with environmental conditions at installed location.
1.
2.
Indoor, Dry and Clean Locations: NEMA 250, Type 1.
Outdoor Locations: NEMA 250, Type 4X.
PART 3 - EXECUTION
3.1
EXAMINATION
A.
Examine elements and surfaces to receive enclosed switches and circuit breakers for compliance
with installation tolerances and other conditions affecting performance of the Work.
B.
Proceed with installation only after unsatisfactory conditions have been corrected.
3.2
INSTALLATION
A.
Install individual wall-mounted switches and circuit breakers with tops at uniform height unless
otherwise indicated.
B.
Temporary Lifting Provisions: Remove temporary lifting eyes, channels, and brackets and
temporary blocking of moving parts from enclosures and components.
C.
Comply with NECA 1.
3.3
IDENTIFICATION
A.
Comply with requirements in Section 260500 "Basic Electrical Materials and Methods."
1.
2.
Identify field-installed conductors, interconnecting wiring, and components; provide
warning signs.
Label each enclosure with engraved metal or laminated-plastic nameplate.
ENCLOSED SWITCHES AND CIRCUIT BREAKERS
262816-3
3.4
FIELD QUALITY CONTROL
A.
Acceptance Testing Preparation:
1.
2.
B.
Test insulation resistance for each enclosed switch and circuit breaker, component,
connecting supply, feeder, and control circuit.
Test continuity of each circuit.
Tests and Inspections:
1.
2.
3.
Perform each visual and mechanical inspection and electrical test stated in NETA
Acceptance Testing Specification. Certify compliance with test parameters.
Correct malfunctioning units on-site, where possible, and retest to demonstrate
compliance; otherwise, replace with new units and retest.
Test and adjust controls, remote monitoring, and safeties. Replace damaged and
malfunctioning controls and equipment.
C.
Enclosed switches and circuit breakers will be considered defective if they do not pass tests and
inspections.
D.
Prepare test and inspection reports, including a certified report that identifies enclosed switches
and circuit breakers and that describes scanning results. Include notation of deficiencies
detected, remedial action taken, and observations after remedial action.
3.5
ADJUSTING
A.
Adjust moving parts and operable components to function smoothly, and lubricate as
recommended by manufacturer.
B.
Set field-adjustable circuit-breaker trip ranges as recommended by the manufacturer for the
particular application.
END OF SECTION 262816
ENCLOSED SWITCHES AND CIRCUIT BREAKERS
262816-4
SECTION 263323 - CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
Section includes the following central battery and power conversion equipment rated 600 V and
less for emergency lighting:
1.
1.3
Interruptible (fast-transfer) central battery equipment.
DEFINITIONS
A.
DDC: Direct digital control.
B.
IBC: International Building Code.
C.
Interruptible: As used in the Section Text, an off-line, passive-standby or line-interactive,
inverter-only unit, with an intentional interruption of power to the load until an internal transfer
switch picks up and transfers the load to the unit's inverter and internal battery source on loss of
the "normal" source, and then retransfers to the "normal" source when it is restored. Transfer
time can be "slow" (up to approximately 1 second) or "fast" (2-4 ms or 40-50 ms, depending on
manufacturer).
D.
LED: Light-emitting diode.
E.
Low Voltage: As defined in NFPA 70 for circuits and equipment operating at less than 50 V or
for remote-control, signaling power-limited circuits.
F.
OCPD: Overcurrent protective device.
G.
PWM: Pulse-width modulated.
H.
TDD: Total demand (harmonic current) distortion (also listed as "THD" in catalog data by
manufacturers).
I.
THD(V): Total harmonic voltage demand.
J.
Uninterruptible: As used in the Section Text, an on-line, double-conversion (rectifier/inverter)
unit, with no interruption of power to the load on interruption and restoration of the "normal"
source.
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 1
K.
UPS: Uninterruptible power supply.
L.
VRLA: Valve-regulated lead acid.
1.4
ACTION SUBMITTALS
A.
Product Data: For each type and rating of central battery equipment unit.
1.
B.
Shop Drawings: For each type and rating of central battery equipment unit.
1.
2.
3.
4.
5.
1.5
Include features, performance, electrical ratings, operating characteristics, shipping and
operating weights, shipping splits, and furnished options, specialties, and accessories.
Include plans, elevations, sections, and mounting details.
Include details of equipment assemblies. Indicate dimensions, weights, loads, required
clearances, ventilation requirements, method of field assembly, components, and location
and size of each field connection.
Include system one-line diagram, internal and interconnecting wiring; and diagrams for
power, signal, and control wiring.
Include elevation, details, and legends of control and indication displays.
Include -circuit current (withstand) rating of unit.
INFORMATIONAL SUBMITTALS
A.
Coordination Drawings: Floor plans, drawn to scale, showing dimensioned layout, required
working clearances, and required area above and around central battery equipment. Show
central battery equipment 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.
B.
Product Certificates: For each type of central battery equipment.
C.
Source quality-control reports.
D.
Field quality-control reports.
E.
Sample Warranty: For special warranty.
1.6
CLOSEOUT SUBMITTALS
A.
Operation and Maintenance Data: For central battery equipment to include in emergency,
operation, and maintenance manuals.
1.
Include the following:
a.
b.
Manufacturer's written instructions for testing central battery equipment.
Manufacturer's written instructions for testing, adjusting, and reprogramming
microprocessor control modules.
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 2
c.
1.7
Manufacturer's written instructions for selecting and setting field-adjustable
controls and status and alarm points
DELIVERY, STORAGE, AND HANDLING
A.
Deliver equipment in fully enclosed vehicles.
B.
Store equipment in spaces having environments controlled within manufacturers' written
instructions for ambient temperature and humidity conditions for non-operating equipment.
1.8
FIELD CONDITIONS
A.
Environmental Limitations: Rate equipment for continuous operation under the following
conditions unless otherwise indicated:
1.
2.
3.
4.
1.9
Ambient Temperature: Less than 32 deg F (0 deg C) or exceeding 104 deg F (40 deg C),
with an average value exceeding 95 deg F (35 deg C) over a 24-hour period.
Ambient Storage Temperature: Not less than minus 4 deg F (minus 20 deg C) and not
exceeding 140 deg F (60 deg C).
Humidity: More than 95 percent (condensing).
Altitude: Exceeding 3300 feet (1000 m).
COORDINATION
A.
1.10
A.
Coordinate sizes and locations of concrete bases. Cast anchor-bolt inserts into bases.
WARRANTY
Special Warranty: Manufacturer agrees to repair or replace central battery equipment that fails
in materials or workmanship within specified warranty period. Special warranty, applying to
batteries only, applies to materials only, on a prorated basis, for period specified.
1.
Warranty Period: Include the following warranty periods, from date of Substantial
Completion:
a.
b.
Central Battery Equipment (excluding Batteries): Two year(s).
Standard VRLA Batteries:
1)
2)
Full Warranty: One year.
Pro Rata: Nine years.
PART 2 - PRODUCTS
2.1
INTERRUPTIBLE (FAST-TRANSFER) CENTRAL BATTERY EQUIPMENT
A.
General Requirements for Interruptible (Fast-Transfer) Central Battery Equipment:
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 3
1.
2.
3.
4.
B.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in
NFPA 70, by a qualified testing agency, and marked for intended location and
application.
NRTL Compliance: Fabricate and label central battery equipment to comply with
UL 924.
Comply with the IBC, NFPA 70, and NFPA 101.
Comply with NEMA PE 1.
Performance Requirements:
1.
2.
Fast-Transfer Central Battery Equipment:
Passive standby (off-line) system.
Automatically sense loss of normal ac supply and use a solid-state static switch to
transfer load. Transfer in 40-50 ms or less from normal supply to battery-inverter supply.
Automatic Operation:
a.
b.
c.
d.
e.
f.
g.
h.
C.
Normal Conditions: Supply the load with ac power flowing from normal ac power
input terminals, bypassing inverter, with battery connected in parallel via
rectifier/charger output.
Abnormal Supply Conditions: If normal ac supply deviates from specified voltage,
transfer switch operates and battery supplies constant, regulated ac power through
the inverter to the load, with a momentary loss of power to the load.
If normal power fails, transfer switch operates and battery supplies constant,
regulated ac power through the inverter to the load, with a momentary loss of
power to the load.
If a fault occurs in system when being supplied by inverter and current flows in
excess of the overload rating of inverter, inverter automatically protects itself
against damage from overloads and short circuits by shutting down.
When normal ac power is restored at input supply terminals of unit, controls
automatically retransfer the load back to the normal ac supply, with a momentary
loss of power to the load. Rectifier/charger then recharges battery.
If normal power failure is prolonged (more than 90 minutes), integral low-voltage
battery protective circuit disconnects battery and prevents battery from damage due
to deep discharge.
If battery becomes discharged, and when normal ac supply is again available,
rectifier/charger recharges battery. When battery is fully charged, rectifier/charger
automatically shifts to float-charge mode.
If battery is disconnected, and normal ac power is available, central battery
equipment continues to supply power to the load with no degradation of its
regulation of voltage and frequency of output bus.
Unit Operating Requirements:
1.
2.
3.
4.
5.
Input AC Voltage Tolerance: Plus 10 and minus 15 percent of central battery equipment
input voltage rating.
Input Frequency Tolerance: Plus or minus 5 percent of central battery equipment
frequency rating.
Synchronizing Slew Rate: 1 Hz per second, maximum.
Minimum Off-Line Efficiency: 95 percent at 60 Hz, full load.
Minimum Displacement Primary-Side Power Factor: 96 percent under any load or
operating condition.
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 4
6.
7.
8.
9.
10.
11.
12.
Ambient Temperature Rating: Not less than 68 deg F (20 deg C) and not exceeding 86
deg F (30 deg C).
Ambient Storage Temperature Rating (Other Than Batteries): Not less than minus 4
deg F (minus 20 deg C) and not exceeding 158 deg F ((70 deg C).)
Ambient Temperature Rating (Batteries): Not less than 32 deg F (0 deg C) and not
exceeding 104 deg F (40 deg C).
Ambient Storage Temperature Rating (Batteries): Not less than 0 deg F (minus 18 deg C)
and not exceeding 104 deg F ((40 deg C).)
Humidity Rating: Less than 95 percent (noncondensing).
Altitude Rating: Not exceeding 3300 feet (1005 m).
Off-Line Overload Capability: 1.1 times the base load current for 60 seconds; minimum
of 1.8 times the base load current for three seconds.
D.
Inverter and Controls Logic: Microprocessor based, isolated from all power circuits; provides
complete self-diagnostics, periodic automatic testing and reporting; with alarms.
E.
Controls and Indication:
1.
Status Indication: Door-mounted, labeled LED indicators or digital screen displaying the
following conditions:
a.
b.
c.
d.
e.
f.
2.
F.
2.
3.
4.
Input transient protection by means of surge suppressors to provide protection against
damage from supply voltage surges as defined in IEEE C62.45, Category B and C.
Integral, programmable, self-diagnostic and self-test circuitry; with alarms and logging.
Battery deep-discharge and self-discharge protection; with alarms.
Battery self-test circuitry; with alarms and logging.
Integral Input Disconnecting Means and OCPD: Thermal-magnetic circuit breaker, complying
with UL 489.
1.
H.
Panel-Mounted Operator Station: Manufacturer's standard front-accessible, sealed keypad
and plain-English language digital display; allows complete programming, program
copying, operating, monitoring, and diagnostic capability.
Self-Protection and Reliability Features:
1.
G.
Normal power available.
Status of system.
Battery charging status.
On battery power.
System fault.
External fault.
Integrated Equipment Minimum Short-Circuit Current Rating: 10 kA.
Inverter:
1.
Description: Solid-state, high-frequency, PWM type, with the following operational
features:
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 5
a.
b.
c.
d.
e.
f.
I.
Rectifier/Battery Charger:
1.
2.
3.
J.
Description: Solid state, variable rate, temperature compensated; automatically maintains
batteries in fully charged condition when normal power is available.
Maximum Battery Recharge Time from Fully Discharged State: 24 hours.
Low-voltage disconnect circuit reduces battery discharge during extended power outages,
monitors battery voltage, and disconnects inverter when battery voltage drops to no less
than 85.7 percent of nominal voltage.
Batteries:
1.
Description: Standard VRLA batteries.
a.
2.
K.
Capable of sustaining full-capacity output of inverter unit for minimum of 90
minutes.
Battery Disconnect and OCPD: Manufacturer's standard.
Integral Output Disconnecting Means and OCPD:
1.
2.
Single-Output OCPD: Thermal-magnetic circuit breaker, complying with UL 489;
manufacturer's standard ratings based on unit output ratings.
Multiple-Output OCPDs: Thermal-magnetic circuit breakers, complying with UL 489;
voltage rating matching unit output voltage rating; 20 A, single pole.
a.
2.2
Automatically regulate output voltage to within plus or minus 5 percent, for all
load ranges and for maximum 25 percent step-load changes; regulation may
increase to 8 percent for 100 percent step-load changes.
Automatically regulate output frequency to within plus or minus 1 Hz, from no
load to full load, at unity power factor, over the operating range of battery voltage.
Output Voltage Waveform: Sine wave with maximum 5 percent TDD throughout
battery operating-voltage range, for 100 percent linear load.
Inverter Overload Capability: 115 percent momentary.
Load Power Factor: 0.8 lead to 0.8 lag.
Brownout Protection: Produces rated power without draining batteries when input
voltage is down to 75 percent of normal.
Normally Closed: 1.
ENCLOSURES
A.
Central Battery Equipment Enclosures: NEMA 250, to comply with environmental conditions at
installed location.
1.
2.
Dry and Clean Indoor Locations: Type 1 steel cabinets with access to components
through hinged doors with flush tumbler lock and latch.
Finish: Manufacturer's standard baked-enamel finish over corrosion-resistant prime
treatment.
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 6
2.3
SOURCE QUALITY CONTROL
A.
Testing: Test and inspect central battery equipment according to UL 924 and UL 1778.
B.
Factory Tests: Test and inspect assembled central battery equipment according to UL 924.
Include the following:
1.
2.
3.
4.
5.
Functional test and demonstration of all functions, controls, indicators, sensors, and
protective devices.
Full-load test.
Transient-load response test.
Overload test.
Power failure test.
C.
Central battery equipment will be considered defective if it does not pass tests and inspections.
D.
Prepare test and inspection reports.
PART 3 - EXECUTION
3.1
EXAMINATION
A.
Receive, inspect, handle, and store central battery equipment according to NECA 411.
B.
Examine areas, surfaces, and substrates to receive central battery equipment, with Installer
present, for compliance with requirements for installation tolerances, structural support,
ventilation, temperature, humidity, and other conditions affecting performance of the Work.
1.
Verify that manufacturer's written instructions for environmental conditions have been
permanently established in spaces where equipment will be installed, before installation
begins.
C.
Examine equipment before installation. Reject equipment that is wet, moisture damaged, or
mold damaged.
D.
Examine roughing-in for electrical connections to verify actual locations of connections before
installation.
E.
Proceed with installation only after unsatisfactory conditions have been corrected.
3.2
INSTALLATION
A.
Coordinate layout and installation of central battery equipment with other construction
including conduit, piping, equipment, and adjacent surfaces. Maintain required workspace
clearances and required clearances for equipment access doors and panels.
B.
Install central battery equipment and accessories according to NECA 411.
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 7
C.
3.3
Wall-Mounted Central Battery Equipment: Install central battery equipment on walls with tops
at uniform height and with disconnect operating handles not higher than 79 inches (2000 mm)
above finished floor unless otherwise indicated, and by bolting units to wall or mounting on
lightweight structural-steel channels bolted to wall.
CONNECTIONS
A.
Connections: Interconnect system components. Make connections to supply and load circuits
according to manufacturer's wiring diagrams unless otherwise indicated.
B.
Ground equipment according to Section 260526 "Grounding and Bonding for Electrical
Systems."
1.
C.
3.4
Separately Derived Systems: Make grounding connections to grounding electrodes and
bonding connections to metallic piping systems as indicated; comply with NFPA 70.
Connect wiring according to Section 260519 "Conductors and Cables."
CONTROL WIRING INSTALLATION
A.
Install wiring between central battery equipment and remote devices.
B.
Bundle, train, and support wiring in enclosures.
3.5
IDENTIFICATION
A.
Identify central battery equipment, components, and control wiring. Comply with requirements
for identification specified in Section 260500 "Basic Electrical Materials and Methods."
1.
2.
3.
4.
B.
3.6
Identify field-installed conductors, interconnecting wiring, and components; provide
warning signs.
Label central battery equipment with engraved nameplates.
Label each separate cabinet, for multicabinet units.
Label each enclosure-mounted control and pilot device.
Operating Instructions: Frame printed operating instructions for central battery equipment,
including control sequences and emergency procedures. Fabricate frame of finished metal, and
cover instructions with clear acrylic plastic. Mount on front of central battery equipment units.
FIELD QUALITY CONTROL
A.
Manufacturer's Field Service: Engage a factory-authorized service representative to test and
inspect components, assemblies, and equipment installations, including connections.
B.
Perform tests and inspections.
C.
Acceptance Testing Preparation:
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 8
1.
Inspect and Test Each Component:
a.
b.
c.
D.
Inspect wiring, components, connections, and equipment installations. Test and
adjust components and equipment.
Test insulation resistance for all external branch circuit, feeder, control, and alarm
wiring connected to central battery equipment element and component.
Test continuity of each circuit.
Tests and Inspections:
1.
2.
3.
4.
5.
6.
7.
8.
Inspect central battery equipment, wiring, components, connections, and equipment
installation. Test and adjust components and equipment.
Test insulation resistance for all external branch circuit, feeder, control, and alarm wiring
connected to central battery equipment element and component.
Test continuity of each circuit.
Verify that input voltages and frequencies at central battery equipment locations are
within voltage and frequency limits specified in Part 2. If outside this range, notify
Architect before closing input OCPDs.
Perform each visual and mechanical inspection and electrical test stated in manufacturer's
written instructions and in NETA Acceptance Testing Specification, including
specifically those for batteries, battery chargers, and UPS, regardless of the type of
central battery equipment provided. Certify compliance with test parameters.
Perform a load-duration test at rated voltage and rated output current to verify the correct
functional operation of the unit under full-load stable operating conditions for the
minimum time limits required by UL 924. Monitor and record ambient temperature and
temperatures within the unit.
Correct malfunctioning units on-site, where possible, and retest to demonstrate
compliance; otherwise, replace with new units and retest.
Perform the following infrared (thermographic) scan tests and inspections and prepare
reports:
a.
b.
c.
9.
Initial Infrared Scanning: After Substantial Completion, but not more than 60 days
after Final Acceptance, perform an infrared scan of central battery equipment.
Remove front panels so joints and connections are accessible to portable scanner.
Follow-up Infrared Scanning: Perform an additional follow-up infrared scan of
central battery equipment 11 months after date of Substantial Completion.
Instruments and Equipment: Use an infrared scanning device designed to measure
temperature or to detect significant deviations from normal values. Provide
calibration record for device.
Test and adjust controls, remote monitoring, and safeties. Replace damaged and
malfunctioning controls and equipment.
E.
Central battery equipment will be considered defective if it does not pass tests and inspections.
F.
Prepare test and inspection reports, including a certified report that identifies central battery
equipment and describes all test results. Include notation of deficiencies detected, remedial
action taken, and observations made after remedial action.
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 9
3.7
STARTUP SERVICE
A.
Engage a factory-authorized service representative to perform startup service.
1.
3.8
Complete installation and startup checks according to manufacturer's written instructions.
ADJUSTING
A.
Program microprocessors for required operational sequences, status indications, alarms, event
recording, and display features. Clear events memory after final acceptance testing and prior to
Substantial Completion.
B.
Set field-adjustable switches, auxiliary relays, and other adjustable parts.
3.9
PROTECTION
A.
Temporary Heating: Apply temporary heat to maintain temperature according to manufacturer's
written instructions until controllers are ready to be energized and placed into service.
B.
Replace central battery equipment whose interiors have been exposed to water or other liquids
prior to Substantial Completion.
3.10
A.
DEMONSTRATION
Engage a factory-authorized service representative to train Owner's maintenance personnel to
adjust, operate, and maintain central battery equipment, and to use and reprogram
microprocessor-based control, monitoring, and display functions.
END OF SECTION 263323
CENTRAL BATTERY EQUIPMENT FOR EMERGENCY LIGHTING
263323 - 10
SECTION 264312 – LIGHTNING ARRESTERS
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
This Section includes service entrance lightning arresters.
B.
Related Sections include the following:
1.
1.3
Division 26 Section 262416, "Panelboards," for factory-installed TVSSs.
DEFINITIONS
A.
ATS: Acceptance Testing Specifications.
B.
SVR: Suppressed voltage rating.
C.
TVSS: Transient voltage surge suppressor.
1.4
SUBMITTALS
A.
Product Data: For each type of product indicated. Include rated capacities, operating weights,
operating characteristics, furnished specialties, and accessories.
B.
Product Certificates: For transient voltage suppression devices, signed by product manufacturer
certifying compliance with the following standards:
1.
2.
UL 1283.
UL 1449.
C.
Operation and Maintenance Data: For transient voltage suppression devices to include in
emergency, operation, and maintenance manuals.
D.
Warranties: Special warranties specified in this Section.
1.5
QUALITY ASSURANCE
A.
Source Limitations: Obtain suppression devices and accessories through one source from a
single manufacturer.
LIGHTNING ARRESTERS
264312-1
B.
Product Options: Drawings indicate size, dimensional requirements, and electrical performance
of suppressors and are based on the specific system indicated. Refer to Division 1 Section
"Product Requirements."
C.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
D.
Comply with NEMA LS 1, "Low Voltage Surge Protection Devices."
1.6
PROJECT CONDITIONS
A.
Service Conditions: Rate surge protection devices for continuous operation under the following
conditions, unless otherwise indicated:
1.
2.
3.
4.
1.7
Maximum Continuous Operating Voltage: Not less than 115 percent of nominal system
operating voltage.
Operating Temperature: 30 to 120 degrees F (0 to 50 degrees C).
Humidity: 0 to 85 percent, noncondensing.
Altitude: Less than 20,000 feet (6090 meters) above sea level.
COORDINATION
A.
1.8
Coordinate location of surge suppressors to allow adequate clearances for maintenance.
WARRANTY
A.
Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or
replace components of surge suppressors that fail in materials or workmanship within 24
months from date of Substantial Completion.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
2.2
Manufacturers: Subject to compliance with requirements, provide products by one of the
specified.
LIGHTNING ARRESTERS
A.
Surge Protection Device Description:
following features and accessories:
1.
2.
B.
Non-modular, sine-wave-tracking type with the
LED indicator lights for power and protection status.
Knockout mounted.
Peak Single-Impulse Surge Current Rating: 20 kA per phase.
LIGHTNING ARRESTERS
264312-2
C.
Connection Means: Permanently wired.
D.
Manufacturers:
1.
277/480V, three phase and 240 V, three phase
a.
b.
c.
d.
Cutler Hammer CHSA03
General Electric 9L15ECC001
Joslyn 1456-21
Square-D SDSA3650
PART 3 - EXECUTION
3.1
INSTALLATION OF SURGE PROTECTION DEVICES
A.
Install devices at service entrance on line side, with ground lead bonded to service entrance
ground.
B.
Install devices at each exterior item of mechanical equipment having a hermetic compressor.
Connect on line side of local disconnect, with ground lead bonded to branch circuit ground.
C.
Make arrester leads as short as possible and keep radius of bends in wire as large as is practical.
3.2
PLACING SYSTEM INTO SERVICE
A.
3.3
Do not energize or connect service entrance or HVAC equipment to their sources until arresters
are installed and connected.
FIELD QUALITY CONTROL
A.
Testing: Perform the following field tests and inspections and prepare test reports:
1.
2.
3.
B.
3.4
After installing surge protection devices, but before electrical circuitry has been
energized, test for compliance with requirements.
Complete startup checks according to manufacturer's written instructions.
Perform each visual and mechanical inspection and electrical test stated in NETA ATS,
"Surge Arresters, Low-Voltage Surge Protection Devices" Section. Certify compliance
with test parameters.
Remove and replace malfunctioning units and retest as specified above.
DEMONSTRATION
A.
Engage a factory-authorized service representative to train Owner's maintenance personnel to
maintain lightning arresters. Refer to Division 1.
END OF SECTION 264312
LIGHTNING ARRESTERS
264312-3
SECTION 264313 - TRANSIENT VOLTAGE SUPPRESSION
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
1.3
This Section includes TVSSs intergrally mounted in distribution panelboards and separatelymounted devices.
DEFINITIONS
A.
ATS: Acceptance Testing Specifications.
B.
SVR: Suppressed voltage rating.
C.
TVSS: Transient voltage surge suppressor.
1.4
SUBMITTALS
A.
Product Data: For each type of product indicated. Include rated capacities, operating weights,
operating characteristics, furnished specialties, and accessories.
B.
Product Certificates: For transient voltage suppression devices, signed by product manufacturer
certifying compliance with the following standards:
1.
2.
UL 1283.
UL 1449.
C.
Qualification Data: For testing agency.
D.
Field quality-control test reports, including the following:
1.
2.
3.
Test procedures used.
Test results that comply with requirements.
Failed test results and corrective action taken to achieve requirements.
E.
Operation and Maintenance Data: For transient voltage suppression devices to include in
emergency, operation, and maintenance manuals.
F.
Warranties: Special warranties specified in this Section.
TRANSIENT VOLTAGE SUPPRESSION
264313-1
1.5
QUALITY ASSURANCE
A.
Source Limitations: Obtain suppression devices and accessories through one source from a
single manufacturer.
B.
Product Options: Drawings indicate size, dimensional requirements, and electrical performance
of suppressors and are based on the specific system indicated. Refer to Division 1 Section
"Product Requirements."
C.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
D.
Comply with IEEE C62.41, "IEEE Guide for Surge Voltages in Low Voltage AC Power
Circuits," and test devices according to IEEE C62.45, "IEEE Guide on Surge Testing for
Equipment Connected to Low-Voltage AC Power Circuits."
E.
Comply with NEMA LS 1, "Low Voltage Surge Protection Devices."
F.
Comply with UL 1283, "Electromagnetic Interference Filters," and UL 1449, "Transient
Voltage Surge Suppressors."
1.6
PROJECT CONDITIONS
A.
Service Conditions: Rate surge protection devices for continuous operation under the following
conditions, unless otherwise indicated:
1.
1.7
Maximum Continuous Operating Voltage: Not less than 115 percent of nominal system
operating voltage.
WARRANTY
A.
1.8
Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or
replace components of surge suppressors that fail in materials or workmanship within five years
from date of Substantial Completion.
EXTRA MATERIALS
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.
Replaceable Protection Modules: One of each size and type installed.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
Available Manufacturers: Subject to compliance with requirements, manufacturers offering
products that may be incorporated into the Work include, but are not limited to, the following:
TRANSIENT VOLTAGE SUPPRESSION
264313-2
B.
Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1.
2.
3.
4.
5.
6.
7.
8.
2.2
Advanced Protection Technologies, Inc.
Current Technology, Inc.
Cutler-Hammer, Inc.; Eaton Corporation.
General Electric Company.
LEA International.
Liebert Corporation; a division of Emerson.
Square D; Schneider Electric.
Tycor; Cutler-Hammer, Inc.
DISTRIBUTION PANELBOARD TVSS
A.
Surge Protection Device Description: Modular design with field-replaceable modules, sinewave-tracking type with the following features and accessories:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Fuses, rated at 200-kA interrupting capacity.
Fabrication using bolted compression lugs for internal wiring.
Integral disconnect switch.
Redundant suppression circuits.
Redundant replaceable modules.
Arrangement with copper bus bars and for bolted connections to phase buses, neutral bus,
and ground bus.
Arrangement with wire connections to phase buses, neutral bus, and ground bus.
LED indicator lights for power and protection status.
Audible alarm, with silencing switch, to indicate when protection has failed.
One set of dry contacts rated at 5 A and 250-V ac, for remote monitoring of protection
status. Coordinate with building power monitoring and control system.
Surge-event operations counter.
B.
Peak Single-Impulse Surge Current Rating: 200 kA per phase.
C.
Connection Means: Permanently wired.
D.
Protection modes and UL 1449 SVR for grounded wye circuits with voltages of 480Y/277
3-phase, 4-wire circuits shall be as follows:
1.
2.
3.
2.3
Line to Neutral: 1200 V for 480Y/277.
Line to Ground: 1000 V for 480Y/277.
Neutral to Ground: 1200 V for 480Y/277.
SEPARATLEY-MOUNTED TVSS DEVICE
A.
Transient Voltage Suppression Device: UL 1449 3rd Edition separately-mounted, solid-state,
parallel-connected, sine-wave tracking suppression and filtering modules.
1.
Minimum Single-Impulse Current Ratings:
a.
Line to Neutral: 100,000 A.
TRANSIENT VOLTAGE SUPPRESSION
264313-3
b.
c.
2.
Protection modes shall be as follows:
a.
b.
c.
3.
4.
5.
6.
7.
b.
2.4
Line to neutral.
Line to ground.
Neutral to ground.
EMI/RFI Noise Attenuation Using 50-ohm Insertion Loss Test: 55 dB at 100 kHz.
Maximum Category C Combination Wave Clamping Voltage: 600 V, line to neutral and
line to ground on 120/208 V systems.
Maximum UL 1449 Clamping Levels: 600 V, line to neutral and line to ground on
120/208 V systems.
Withstand Capabilities: 3000 Category C surges with less than 5 percent change in
clamping voltage.
Accessories:
a.
B.
Line to Ground: 100,000 A.
Neutral to Ground: 50,000 A.
Form-C contacts, one normally open and one normally closed, for remote
monitoring of system operation. Contacts to reverse position on failure of any
surge diversion module.
Audible alarm activated on failure of any surge diversion module.
Connection Means: Wired.
ENCLOSURES
A.
NEMA 250, with type matching the enclosure of panel or device being protected.
PART 3 - EXECUTION
3.1
INSTALLATION OF SURGE PROTECTION DEVICES
A.
3.2
Install devices at service entrance on load side, with ground lead bonded to service entrance
ground.
PLACING SYSTEM INTO SERVICE
A.
Do not energize or connect service entrance equipment to their sources until surge protection
devices are installed and connected.
END OF SECTION 264313
TRANSIENT VOLTAGE SUPPRESSION
264313-4
SECTION 265100 - INTERIOR LIGHTING
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
Section Includes:
1.
2.
3.
4.
B.
Related Sections:
1.
1.3
Interior lighting LED luminaires.
LED sources.
LED driver.
Lighting fixture supports.
Section 265600, "Exterior Lighting."
REFERENCE STANDARDS
A.
National Energy Policy Act of 2005, Public Law No. 109-58.
B.
IESNA LM-63 - ANSI Approved Standard File Format for Electronic Transfer of Photometric
Data and Related Information; 2002.
C.
NFPA 70 - National Electrical Code; National Fire Protection Association; 2011.
D.
IESNA LM-79-08 IESNA - Approved Method for Electrical and Photometric Measurements of
Solid-State Lighting Products; 2008
E.
IESNA LM-80-08 IESNA - Approved Method for Measuring Lumen Maintenance of LED
Light Sources
F.
IESNA TM-21-2011 – Projecting Long Term Lumen Maintenance of LED Light Sources
G.
UL 8750 – Light Emitting Diode (LED) Equipment for Use in Lighting Products
H.
OSHA 29CFR1910.7 – luminaires shall be listed by national recognized testing laboratory
approved by United Stated Department of Labor, Occupational Safety and Health
Administration (OSHA)
INTERIOR LIGHTING
265100-1
1.4
DEFINITIONS
A.
CCT: Correlated color temperature.
B.
CFL: Compact fluorescent lamp.
C.
CRI: Color-rendering index.
D.
Lumen: Measured output of lamp and luminaire, or both.
E.
Luminaire: Complete lighting fixture, including auxiliary power and control devices
(transformers, ballasts, drivers etc.) if provided.
F.
SSL: Solid State Lighting (LED lighting).
G.
THD: Total Harmonic Distortion.
1.5
ACTION SUBMITTALS
A.
Product Data: For each type of lighting fixture, arranged in order of fixture designation. Include
data on features, accessories, and finishes.
B.
Installation instructions.
1.6
INFORMATIONAL SUBMITTALS
A.
Field quality-control reports.
B.
Warranty: Sample of special warranty.
1.7
QUALITY ASSURANCE
A.
Luminaire Photometric Data Testing Laboratory Qualifications: Provided by manufacturers'
laboratories that are accredited under the National Volunteer Laboratory Accreditation Program
for Energy Efficient Lighting Products.
B.
Luminaire Photometric Data Testing Laboratory Qualifications: Provided by an independent
agency, with the experience and capability to conduct the testing indicated, that is an NRTL as
defined by OSHA in 29 CFR 1910, complying with the IESNA Lighting Measurements Testing
& Calculation Guides.
C.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by
a qualified testing agency, and marked for intended location and application.
D.
Comply with NFPA 70 (2011).
INTERIOR LIGHTING
265100-2
1.8
COORDINATION
A.
1.9
Coordinate layout and installation of lighting fixtures and suspension system with other
construction that penetrates ceilings or is supported by them, including HVAC equipment, firesuppression system, and partition assemblies.
WARRANTY
A.
Special Warranty for LED Lighting Fixtures: Manufacturer's standard form in which
manufacturer of LED lighting fixtures agrees to repair or replace components of units that fail
in materials or workmanship within specified warranty period.
1.
Warranty Period for LED Lighting Fixtures: Five years from date of Substantial
Completion.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
2.2
As specified on the Drawings or with approval prior to the bid. Approval granted prior to bid is
subject to comparison with the specified equipment and to compliance with the plans,
specifications, and space limitations.
GENERAL REQUIREMENTS FOR LIGHTING FIXTURES AND COMPONENTS
A.
Recessed Fixtures: Comply with NEMA LE 4 for ceiling compatibility for recessed fixtures.
B.
Metal Parts: Free of burrs and sharp corners and edges.
C.
Sheet Metal Components: Steel unless otherwise indicated. Form and support to prevent
warping and sagging.
D.
Doors, Frames, and Other Internal Access: Smooth operating, free of light leakage under
operating conditions, and designed to permit relamping without use of tools. Designed to
prevent doors, frames, lenses, diffusers, and other components from falling accidentally during
relamping and when secured in operating position.
2.3
LED LUMINAIRES
A.
The luminaire shall be a single, self-contained device, not requiring on-site assembly for
installation. The power supply and circuit board for the luminaire shall be integral to the unit
and be accessible through aperture.
B.
Toolless adjustments shall be possible after installation.
C.
The assembly and manufacturing process for the SSL luminaire shall be designed to assure all
internal components are adequately supported to withstand mechanical shock and vibration.
INTERIOR LIGHTING
265100-3
D.
Power Factor: The luminaire shall have a power factor of 90% or greater at all standard
operating voltages and full luminaire output.
E.
THD: Total harmonic distortion (current and voltage) induced into an AC power line by a
luminaire shall not exceed 20 percent at any standard input voltage.
F.
Surge Suppression: The luminaire shall include surge protection to withstand high repetition
noise and other interference.
G.
RF Interference: The luminaire and associated on-board circuitry must meet Class A emission
limits referred in Federal Communications Commission (FCC) Title 47, Subpart B, Section 15
Non-Consumer requirements for EMI/RFI emissions.
H.
Electrical connections between normal power and driver must be modular utilizing a snap fit
connector. All electrical components must be easily accessible after installation and be
replaceable without removing the fixture from the ceiling.
I.
The thermal management (of the heat generated by the LEDs) shall be of sufficient capacity to
assure proper operation of the luminaire over the expected useful life.
J.
The LED manufacturer’s maximum junction temperature for the expected life shall not be
exceeded at the average operating ambient (Section 2.2.2).
K.
The LED manufacturer’s maximum junction temperature for the catastrophic failure shall not be
exceeded at the maximum operating ambient (Section 2.2.3).
L.
The Driver manufacturer’s maximum case temperature shall not be exceeded at the maximum
operating ambient. Thermal management shall be passive by design. The use of fans or other
mechanical devices shall not be allowed.
2.4
LED SOURCES
A.
Lumen output shall not decrease by more than 30% over the minimum operational life of
50,000 hours.
B.
Individual LEDs shall be connected such that a catastrophic loss or the failure of one LED will
not result in the loss of the entire luminaire.
C.
LED light engine shall be suitable for field maintenance or service from below the ceiling with
plug-in connectors. LED light engine shall be upgradable.
D.
Light Color/Quality:
1.
2.
3.
Correlated Color Temperature (CCT) range as per schedule shall be correlated to
chromaticity as defined by the absolute (X,Y) coordinates on the 2-D CIE chromaticity
chart.
The color rendition index (CRI) shall be 70 or greater.
Color shift over 6,000 hours shall be <0.007 change in u’ v’ as demonstrated in IES
LM80 report.
INTERIOR LIGHTING
265100-4
2.5
LED DRIVER
A.
Driver: 120 – 277 volt, Sound Rated A. Driver shall be > 80% efficient at full load across all
input voltages. Input wires shall be 18AWG solid copper minimum.
B.
Driver shall be suitable for full-range dimming. The luminaire shall be capable of continuous
dimming without perceivable flicker over a range of 100% to 10% of rated lumen output with a
smooth shut off function. Dimming shall be controlled by a 0-10V signal.
C.
Driver shall be UL Class 2 listed for use in dry or damp locations and CSA Certified.
D.
Minimum operating temperature of -40oC
E.
Driver life expectancy: 50,000 hours at T case of < 70oC.
F.
The electronics/power supply enclosure shall be internal to the SSL luminaire and be accessible
per UL requirements.
G.
The surge protection which resides within the driver shall protect the luminaire from damage
and failure for transient voltages and currents as defined in ANSI/IEEE C64.41 2002 for
Location Category A, where failure does not mean a momentary loss of light during the
transient event.
2.6
LIGHTING FIXTURE SUPPORT COMPONENTS
A.
Comply with Section 260500, "Basic Electrical Materials and Methods" for channel- and angleiron supports and nonmetallic channel and angle supports.
B.
Wires: ASTM A 641/A 641M, Class 3, soft temper, zinc-coated steel, 12 gage (2.68 mm).
C.
Rod Hangers: 3/16-inch (5-mm) minimum diameter, cadmium-plated, threaded steel rod.
PART 3 - EXECUTION
3.1
INSTALLATION
A.
Lighting fixtures:
1.
3.2
Set level, plumb, and square with ceilings and walls unless otherwise indicated.
CONNECTIONS
A.
Tighten electrical connectors and terminals according to manufacturer's published torquetightening valves. If manufacturer's torque values are not indicated, use those specified in UL
486A and UL 486B.
INTERIOR LIGHTING
265100-5
3.3
FIELD QUALITY CONTROL
A.
Inspect each installed fixture for damage. Replace damaged fixtures and components.
B.
Verify normal operation of each fixture after installation.
C.
Prepare a written report of tests, inspections, observations, and verifications indicating and
interpreting results. If adjustments are made to lighting system, retest to demonstrate
compliance with standards.
END OF SECTION 265100
INTERIOR LIGHTING
265100-6
SECTION 265600 - EXTERIOR LIGHTING
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and the 2006 edition of the City of Shreveport "Standard Specification for
Infrastructure Improvements," apply to this Section.
SUMMARY
A.
Section Includes:
1.
2.
3.
4.
B.
Related Sections:
1.
1.3
Exterior lighting LED luminaires.
LED sources.
LED driver.
Lighting fixture supports.
Section 265100, "Interior Lighting."
REFERENCE STANDARDS
A.
National Energy Policy Act of 2005, Public Law No. 109-58.
B.
IESNA LM-63 - ANSI Approved Standard File Format for Electronic Transfer of Photometric
Data and Related Information; 2002.
C.
NFPA 70 - National Electrical Code; National Fire Protection Association; 2011.
D.
IESNA LM-79-08 IESNA - Approved Method for Electrical and Photometric Measurements of
Solid-State Lighting Products; 2008
E.
IESNA LM-80-08 IESNA - Approved Method for Measuring Lumen Maintenance of LED
Light Sources
F.
IESNA TM-21-2011 – Projecting Long Term Lumen Maintenance of LED Light Sources
G.
UL 8750 – Light Emitting Diode (LED) Equipment for Use in Lighting Products
H.
OSHA 29CFR1910.7 – luminaires shall be listed by national recognized testing laboratory
approved by United Stated Department of Labor, Occupational Safety and Health
Administration (OSHA)
EXTERIOR LIGHTING
265600-1
1.4
DEFINITIONS
A.
CCT: Correlated color temperature.
B.
CFL: Compact fluorescent lamp.
C.
CRI: Color-rendering index.
D.
Lumen: Measured output of lamp and luminaire, or both.
E.
Luminaire: Complete lighting fixture, including auxiliary power and control devices
(transformers, ballasts, drivers etc.) if provided.
F.
SSL: Solid State Lighting (LED lighting).
G.
THD: Total Harmonic Distortion.
1.5
ACTION SUBMITTALS
A.
Product Data: For each type of lighting fixture, arranged in order of fixture designation. Include
data on features, accessories, and finishes.
B.
Installation instructions.
1.6
INFORMATIONAL SUBMITTALS
A.
Field quality-control reports.
B.
Warranty: Sample of special warranty.
1.7
QUALITY ASSURANCE
A.
Luminaire Photometric Data Testing Laboratory Qualifications: Provided by manufacturers'
laboratories that are accredited under the National Volunteer Laboratory Accreditation Program
for Energy Efficient Lighting Products.
B.
Luminaire Photometric Data Testing Laboratory Qualifications: Provided by an independent
agency, with the experience and capability to conduct the testing indicated, that is an NRTL as
defined by OSHA in 29 CFR 1910, complying with the IESNA Lighting Measurements Testing
& Calculation Guides.
C.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by
a qualified testing agency, and marked for intended location and application.
D.
Comply with NFPA 70 (2011).
EXTERIOR LIGHTING
265600-2
1.8
COORDINATION
A.
1.9
Coordinate layout and installation of lighting fixtures and suspension system with other
construction that penetrates ceilings or is supported by them, including HVAC equipment, firesuppression system, and partition assemblies.
WARRANTY
A.
Special Warranty for LED Lighting Fixtures: Manufacturer's standard form in which
manufacturer of LED lighting fixtures agrees to repair or replace components of units that fail
in materials or workmanship within specified warranty period.
1.
Warranty Period for LED Lighting Fixtures: Five years from date of Substantial
Completion.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
2.2
As specified on the Drawings or with approval prior to the bid. Approval granted prior to bid is
subject to comparison with the specified equipment and to compliance with the plans,
specifications, and space limitations.
GENERAL REQUIREMENTS FOR LIGHTING FIXTURES AND COMPONENTS
A.
Recessed Fixtures: Comply with NEMA LE 4 for ceiling compatibility for recessed fixtures.
B.
Metal Parts: Free of burrs and sharp corners and edges.
C.
Sheet Metal Components: Steel unless otherwise indicated. Form and support to prevent
warping and sagging.
D.
Doors, Frames, and Other Internal Access: Smooth operating, free of light leakage under
operating conditions, and designed to permit relamping without use of tools. Designed to
prevent doors, frames, lenses, diffusers, and other components from falling accidentally during
relamping and when secured in operating position.
2.3
LED LUMINAIRES
A.
The luminaire shall be a single, self-contained device, not requiring on-site assembly for
installation. The power supply and circuit board for the luminaire shall be integral to the unit
and be accessible through aperture.
B.
Toolless adjustments shall be possible after installation.
C.
The assembly and manufacturing process for the SSL luminaire shall be designed to assure all
internal components are adequately supported to withstand mechanical shock and vibration.
EXTERIOR LIGHTING
265600-3
D.
Power Factor: The luminaire shall have a power factor of 90% or greater at all standard
operating voltages and full luminaire output.
E.
THD: Total harmonic distortion (current and voltage) induced into an AC power line by a
luminaire shall not exceed 20 percent at any standard input voltage.
F.
Surge Suppression: The luminaire shall include surge protection to withstand high repetition
noise and other interference.
G.
RF Interference: The luminaire and associated on-board circuitry must meet Class A emission
limits referred in Federal Communications Commission (FCC) Title 47, Subpart B, Section 15
Non-Consumer requirements for EMI/RFI emissions.
H.
Electrical connections between normal power and driver must be modular utilizing a snap fit
connector. All electrical components must be easily accessible after installation and be
replaceable without removing the fixture from the ceiling.
I.
The thermal management (of the heat generated by the LEDs) shall be of sufficient capacity to
assure proper operation of the luminaire over the expected useful life.
J.
The LED manufacturer’s maximum junction temperature for the expected life shall not be
exceeded at the average operating ambient (Section 2.2.2).
K.
The LED manufacturer’s maximum junction temperature for the catastrophic failure shall not be
exceeded at the maximum operating ambient (Section 2.2.3).
L.
The Driver manufacturer’s maximum case temperature shall not be exceeded at the maximum
operating ambient. Thermal management shall be passive by design. The use of fans or other
mechanical devices shall not be allowed.
2.4
LED SOURCES
A.
Lumen output shall not decrease by more than 30% over the minimum operational life of
50,000 hours.
B.
Individual LEDs shall be connected such that a catastrophic loss or the failure of one LED will
not result in the loss of the entire luminaire.
C.
LED light engine shall be suitable for field maintenance or service from below the ceiling with
plug-in connectors. LED light engine shall be upgradable.
D.
Light Color/Quality:
1.
2.
3.
Correlated Color Temperature (CCT) range as per schedule shall be correlated to
chromaticity as defined by the absolute (X,Y) coordinates on the 2-D CIE chromaticity
chart.
The color rendition index (CRI) shall be 70 or greater.
Color shift over 6,000 hours shall be <0.007 change in u’ v’ as demonstrated in IES
LM80 report.
EXTERIOR LIGHTING
265600-4
2.5
LED DRIVER
A.
Driver: 120 – 277 volt, Sound Rated A. Driver shall be > 80% efficient at full load across all
input voltages. Input wires shall be 18AWG solid copper minimum.
B.
Driver shall be suitable for full-range dimming. The luminaire shall be capable of continuous
dimming without perceivable flicker over a range of 100% to 10% of rated lumen output with a
smooth shut off function. Dimming shall be controlled by a 0-10V signal.
C.
Driver shall be UL Class 2 listed for use in dry or damp locations and CSA Certified.
D.
Minimum operating temperature of -40oC
E.
Driver life expectancy: 50,000 hours at T case of < 70oC.
F.
The electronics/power supply enclosure shall be internal to the SSL luminaire and be accessible
per UL requirements.
G.
The surge protection which resides within the driver shall protect the luminaire from damage
and failure for transient voltages and currents as defined in ANSI/IEEE C64.41 2002 for
Location Category A, where failure does not mean a momentary loss of light during the
transient event.
2.6
POLES AND SUPPORT COMPONENTS, GENERAL REQUIREMENTS
A.
Structural Characteristics: Comply with AASHTO LTS-4.
1.
2.
Wind-Load Strength of Poles: Adequate at indicated heights above grade without failure,
permanent deflection, or whipping in steady winds of speed indicated in Part 1
"Structural Analysis Criteria for Pole Selection" Article, with a gust factor of 1.3.
Strength Analysis: For each pole, multiply the actual equivalent projected area of
luminaires and brackets by a factor of 1.1 to obtain the equivalent projected area to be
used in pole selection strength analysis.
B.
Luminaire Attachment Provisions:
Comply with luminaire manufacturers' mounting
requirements. Use stainless-steel fasteners and mounting bolts, unless otherwise indicated.
C.
Mountings, Fasteners, and Appurtenances: Corrosion-resistant items compatible with support
components.
1.
2.
3.
Materials: Shall not cause galvanic action at contact points.
Anchor Bolts, Leveling Nuts, Bolt Caps, and Washers:
fabrication, unless stainless-steel items are indicated.
Anchor-Bolt Template: Plywood or steel.
Hot-dip galvanized after
D.
Concrete Pole Foundations: Cast in place, with anchor bolts to match pole-base flange.
Concrete, reinforcement, and formwork are specified in City of Shreveport Specification 606
"Concrete Reinforcement."
E.
Breakaway Supports: Frangible breakaway supports, tested by an independent testing agency
acceptable to authorities having jurisdiction, according to AASHTO LTS-4.
EXTERIOR LIGHTING
265600-5
2.7
STEEL POLES
A.
Poles: Comply with ASTM A 500, Grade B, carbon steel with a minimum yield of 46,000 psig
(317 MPa); 1-piece construction up to 40 feet (12 meters) in height with access handhole in pole
wall.
1.
2.
Shape: As scheduled.
Mounting Provisions: Butt flange for bolted mounting on foundation or breakaway
support.
B.
Pole-Top Tenons: Fabricated to support luminaire or luminaires and brackets indicated, and
securely fastened to pole top.
C.
Intermediate Handhole and Cable Support: Weathertight, 3x5 inch (76x127 mm) handhole
located at midpoint of pole with cover for access to internal welded attachment lug for electric
cable support grip.
D.
Grounding and Bonding Lugs: Welded 1/2 inch (13 mm) threaded lug, complying with
requirements in Division 26 Section 26 05 26, "Grounding and Bonding," listed for attaching
grounding and bonding conductors of type and size listed in that Section, and accessible through
handhole.
E.
Cable Support Grip: Wire-mesh type with rotating attachment eye, sized for diameter of cable
and rated for a minimum load equal to weight of supported cable times a 5.0 safety factor.
F.
Galvanized Finish: After fabrication, hot-dip galvanize complying with ASTM A 123/A 123M.
G.
Factory-Painted Finish: Comply with NAAMM's "Metal Finishes Manual for Architectural and
Metal Products" for recommendations for applying and designating finishes.
2.8
POLE ACCESSORIES
A.
Base Covers: Manufacturers' standard metal units, arranged to cover pole's mounting bolts and
nuts. Finish same as pole.
PART 3 - EXECUTION
3.1
LUMINAIRE INSTALLATION
A.
Install lamps in each luminaire.
B.
Fasten luminaire to indicate structural supports.
1.
C.
Use fastening methods and materials selected to resist seismic forces defined for the
application and approved by manufacturer.
Adjust luminaires that require field adjustment or aiming.
EXTERIOR LIGHTING
265600-6
3.2
POLE INSTALLATION
A.
Align pole foundations and poles for optimum directional alignment of luminaires and their
mounting provisions on the pole.
B.
Concrete Pole Foundations: Set anchor bolts according to anchor-bolt templates furnished by
pole manufacturer. Concrete materials, installation, and finishing requirements are specified in
City of Shreveport Specification 606 "Concrete Reinforcement."
C.
Foundation-Mounted Poles: Mount pole with leveling nuts, and tighten top nuts to torque level
recommended by pole manufacturer.
1.
2.
3.
4.
D.
3.3
Use anchor bolts and nuts selected to resist seismic forces defined for the application and
approved by manufacturer.
Grout void between pole base and foundation. Use nonshrink or expanding concrete
grout firmly packed to fill space.
Install base covers, unless otherwise indicated.
Use a short piece of 1/2 inch (13 mm) diameter pipe to make a drain hole through grout.
Arrange to drain condensation from interior of pole.
Raise and set poles using web fabric slings (not chain or cable).
CORROSION PREVENTION
A.
Aluminum: Do not use in contact with earth or concrete. When in direct contact with a
dissimilar metal, protect aluminum by insulating fittings or treatment.
B.
Steel Conduits: Comply with Division 26 Section 26 05 33, "Raceways and Boxes." In
concrete foundations, wrap conduit with 0.010 inch (0.254 mm) thick, pipe-wrapping plastic
tape applied with a 50 percent overlap.
3.4
GROUNDING
A.
Ground metal poles and support structures according to Division 26 Section 26 05 26,
"Grounding and Bonding."
1.
2.
3.5
Install grounding electrode for each pole, unless otherwise indicated.
Install grounding conductor pigtail in the base for connecting luminaire to grounding
system.
FIELD QUALITY CONTROL
A.
Inspect each installed fixture for damage. Replace damaged fixtures and components.
B.
Illumination Observations: Verify normal operation of lighting units after installing luminaires
and energizing circuits with normal power source.
1.
Verify operation of photoelectric controls.
EXTERIOR LIGHTING
265600-7
C.
Prepare a written report of tests, inspections, observations, and verifications indicating and
interpreting results. If adjustments are made to lighting system, retest to demonstrate
compliance with standards.
END OF SECTION 265600
EXTERIOR LIGHTING
265600-8