SECTION 26-0500 COMMON WORK RESULTS FOR ELECTRICAL

Transcription

COMMON WORK RESULTS FOR ELECTRICAL 26-0500-1
MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25)
SECTION 26-0500
COMMON WORK RESULTS FOR ELECTRICAL
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 1 Specification Sections, apply to this Section.
1.2
SUMMARY
A. This Section includes the following electrical materials and methods:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Sequencing and scheduling.
Applicable Codes and Standards.
Supporting devices and methods for electrical components.
Concrete equipment bases.
Electrical identification.
Touchup painting.
Building wire, connectors, and splices for branch circuits and feeders.
Cutting and patching for electrical construction.
Temporary lighting and power.
B. Where the electrical (Div. 26/28) specifications list equipment or product(s) the
Contractor shall provide the listed item(s). If, in the opinion of the Contractor, the listed
item(s) is not required for the project (i.e., not indicated on the drawings), the Contractor
shall request a ruling from the Architect.
1.3
ITEMS OF EQUIPMENT FURNISHED BY MECHANICAL TRADES
A. The following items of equipment, where required, are specified in DIVISION 21/22/23
but shall be installed and connected under this division:
1. Variable frequency drives and control devices
B. Note: Control sequences, operation and function of mechanical equipment is the
responsibility of Division 21/22/23. Division 26 shall make power connections. Control
contractor to furnish, pull and connect control conductors.
1.4
RECORD DRAWINGS
A. Architect shall be provided with record drawings as specified in Division 1.
B. Contractor shall maintain one set of full size drawings of work specified under Division
26/28 on the job site, marked to show as-built conditions. Upon completion of project,
the contractor shall prepare record drawings as specified in Division 1.
1.5
SUBMITTALS
A. General: Submit each item in this Article according to the Conditions of the Contract and
Division 1 Specification Sections.
B. Product Data for each type of product specified. Submittals for panelboards and
other major electrical equipment will be rejected if not accompanied by room
layouts as required in D.
C. Shop Drawings detailing fabrication and installation of supports and anchorage for
electrical items.
D. Coordination Drawings for electrical installation.
1. Prepare Coordination Drawings for all electrical rooms and closets and for the fire
pump and standby generator rooms and for all major electrical equipment to a ¼inch-equals-1-foot (1:50) scale or larger. Detail and dimension major elements,
components, and systems of electrical equipment and materials in relation to each
other and to other systems, installations, and building components. Indicate
locations and space requirements for installation, access, and working clearance.
Include floor plans, elevations, and details as required to indicate:
a) Clearances in accordance with NFPA 70 and local and state
requirements, to meet safety requirements and for servicing and
maintaining equipment, including space for equipment disassembly
required for periodic maintenance.
b) Equipment support details, including seismic bracing if required.
c) Sizes and locations of required concrete pads and bases.
2. The equipment arrangements shown on the plans are based on dimensions from a
specific manufacturer. Similar equipment from other acceptable manufacturers may
have different dimensions or clearance requirements. It is the responsibility of the
Contractor, prior to bid or proposal, to verify that the Contractor's selections for
equipment will fit in the indicated spaces, with the required clearances. If
customization or special construction of equipment or components is required to
adapt an item to its indicated space or arrangement, that customization or special
construction shall be included in the bid or proposal pricing. If customization, special
construction, or changes to other building systems and components are required to
install an item in its indicated space or arrangement, changes, including design fees
if required, shall be included in the bid or proposal pricing. After the submission of a
bid or proposal, any customization or special construction of equipment or
components, or any change from one manufacturer to another, or any other cost that
is required to satisfy space or clearance constraints shall be the responsibility of the
Contractor, and shall result in no additional cost to the Owner.
E. Where materials, equipment, apparatus or other products are specified by manufacturer,
brand name, type or catalog number, such designation is to establish standards or
desired quality and style and shall be the basis for products. Provide materials so
specified under this contract, unless changed by mutual agreement. Refer to Division 2
for requirements for preapproval of alternates.
1.6
QUALITY ASSURANCE
A. Comply with NFPA 70 for components and installation.
B. Listing and Labeling: Provide products specified in this Section that are listed and
labeled.
1. The Terms “Listed and Labeled”: As defined in the National Electrical Code, Article
100.
2. Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing
Laboratory” (NRTL) as defined in OSHA Regulation 1910.7.
C. Provide testing as specified in accordance with the InterNational Electrical Testing
Association, Inc. (NETA), Acceptance Testing Specifications for Electrical Power
Distribution Systems and Equipment- 1999.
1.7
SEQUENCING AND SCHEDULING
A. Coordinate electrical equipment installation with other building components.
B. Arrange for chases, slots, and openings in building structure during progress of
construction to allow for electrical installations.
C. Coordinate installing required supporting devices and set sleeves in cast-in-place
concrete and other structural components as they are constructed.
D. Sequence, coordinate, and integrate installing electrical materials, and equipment for
efficient flow of the Work. Coordinate installing large equipment requiring positioning
prior to closing in the building.
E. Coordinate connection electrical service to components furnished by the Owner and
under other Sections.
F. Coordinate connecting electrical systems with exterior underground and overhead
utilities and services. Comply with requirements of governing regulations, franchised
utility and service companies, and controlling agencies.
G. Coordinate requirements for access panels and doors where electrical items requiring
access are concealed by finished surfaces. Access panels and doors are specified in
Division 8 Section “Access Doors.”
H. Coordinate installing electrical identification after completion of finishing where
identification is applied to field-finished surfaces.
I.
1.8
Coordinate installing electrical identifying devices and markings prior to installing
acoustical ceilings and similar finishes that conceal such items.
APPLICABLE CODES
A. Perform work specified in Division 16 in accordance with the codes and standards listed
below. Where the requirements of the plans and specifications exceed those of the
listed codes and standards, the plans and specifications shall take precedence. Where
the plans and specifications and listed codes are in conflict, obtain a ruling from the
architect. Code editions shall be as adopted and interpreted by state and local
authorities. If not adopted, use the latest edition.
1.
2.
3.
4.
NFPA 70: National Electrical Code.
NFPA 72: National Fire Alarm Code.
NFPA 99: Healthcare Facilities.
NFPA 101: Life Safety Code.
5.
6.
7.
8.
FGI Guidelines for Design and Construction of Hospitals and Healthcare Facilities
Illinois Administrative Code
ANSI Handicap Code – A117.1.
The Code of Federal Regulations and Other Department of Justice requirements of
the Americans with Disabilities Act.
9. International Building Code.
10. International Energy Conservation Code
1.9
INSTRUCTIONS TO OWNER
A. Instruct owner in proper usage and care of the entire electrical system associated with
this project.
B. Provide and electronic copy of the O&M documentation package in searchable Adobe
PDF format.
C. The electrical contractor should maintain appropriate maintenance logs, where
applicable, of all interim maintenance tasks performed on all started-up equipment, so
that manufacturer’s warranties are not voided prior to the equipment being turned over to
the owner. This log shall be submitted when the equipment is officially released to the
owner.
PART 2 – PRODUCTS
2.1
SUPPORTING DEVICES
A. Channel and angle support systems, hangers, anchors, sleeves, brackets, fabricated
items, and fasteners are designed to provide secure support from the building structure
for electrical components.
1. Material: Steel, except as otherwise indicated, protected from corrosion with zinc
coating or with treatment of equivalent corrosion resistance using approved
alternative finish or inherent material characteristics.
2. Metal Items for Use Outdoors or in Damp Locations: Hot-dip Galvanized steel,
except as otherwise indicated.
B. Steel Channel supports have 9/16-inch (14-mm) diameter holes at a maximum of 8
inches (203 mm) o.c., in at least 1 surface.
1. Fittings and accessories mate and match with channels and are from the same
manufacturer.
C. Nonmetallic Channel Angle Systems: Structural-grade, factory-formed, fiberglass-resin
channels and angles with 9/16-inch (14-mm) diameter holes at a maximum of 8 inches
(203 mm) o.c., in at least 1 surface.
1. Fittings and accessories mate and match with channels or angles and are from the
same manufacturer.
2. Fitting and Accessory Material: Same as channels and angles, except metal items
may be stainless steel.
D. Raceway Cable Supports: Manufactured clevis hangers, riser clamps, straps, threaded
C-clams with retainers, ceiling trapeze hangers, wall brackets, and spring steel clamps
or “click – type” hangers.
E. Sheet-Metal Sleeves: 0.0276-inch (0.7 –mm) or heavier galvanized sheet steel, round
tube, closed with welded longitudinal joint.
F. Pipe Sleeves: ASTM A 53, Type E, Grade A, Schedule 40, galvanized steel, plain ends.
G. Expansion Anchors: Carbon- steel wedge or sleeve type.
H. Toggle Bolts: All-steel springhead type.
I.
2.2
Powder-Driven Threaded Studs: Heat-treated steel.
CONCRETE EQUIPMENT BASES
A. Forms and Reinforcing Materials: As specified in Division 3 section “Cast-in-Place
Concrete.”
B. Concrete: 3000-psi (20.7-MPa), 28-day compressive strength as specified in Division 3
Section “Cast-in-Place Concrete.”
2.3
ELECTRICAL IDENTIFICATION
A. Manufacturer’s Standard Products: Where more than one type is listed for a specified
application, selections is Installer’s option, but provide single type for each application
category. Use colors prescribed by ANSI A13.1, NFPA 70, and these Specifications.
B. Colored Adhesive Marking Tape for Raceways, Wires, and Cables: Self-adhesive vinyl
tape not less than 3 mils thick by 1 inch wide (0.08 mm thick by 25 mm wide).
C. Tape Markers: Vinyl or vinyl-cloth, self-adhesive, wraparound type with preprinted
numbers and letters.
D. Color-Coding Cable Ties: Type 6/6 nylon, self-locking type. Colors to suit coding
scheme.
E. Engraved, Plastic-Laminated Labels, Signs, and Instruction Plates: Engraving stock,
melamine plastic laminate punched for mechanical fasteners 1/16- inch (1.6-mm)
minimum thick. Engraved legend in white letters on colored face.
F. Interior Warning and Caution Signs: Preprinted, aluminum, baked-enamel finish signs,
punched for fasteners, with colors, legend, and size appropriate to the application.
G. Exterior Warning and Caution Signs: Weather-resistant, nonfading, preprinted, cellulose
acetate butyrate signs with 0.0396-inch (1-mm), galvanized steel backing, with colors,
legend, and size appropriate to the application. 1/4 –inch (6.4-mm) grommets in corners
for mounting.
H. Fasteners for Plastic-Laminated and Metal Signs: Self-tapping stainless-steel screws or
No. 10/32 stainless-steel machine screws with nuts and flat and lock washers.
I.
Identify the electrical equipment as listed below with permanently attached black with
white lettering (normal power), yellow with black lettering (life safety branch), orange
with white lettering (critical branch), green with white lettering (equipment
system), purple with white lettering (essential system – generator distribution)
and red with white lettering (fire alarm) engraved plastic laminated plates. Lettering
engraved on the face of each plate shall be 1/2" in height. Attach with sheet metal
screws. Plates shall include the identifying information listed for each class of
equipment.
1. Main switchboard
a)
b)
c)
d)
e)
Name
Voltage
Feeder conductor size
Individually label each device in switchboard with name or description.
Phasing relationship and rotation (clockwise - counter clockwise)
2. Panelboards
a)
b)
c)
d)
e)
f)
Name
System or branch
Voltage
Fed from (Panelboard or switchboard name, indicate transformer kVA if
applicable)
Feeder conductor size and sets if greater than one.
Phasing relationship and rotation (clockwise – counter clockwise)
3. Transformers
a)
b)
c)
d)
e)
f)
Name
System or branch
Voltage, primary/secondary
Fed from (panelboard or switchboard name)
Feeder conductor size and number of sets if greater than one.
4. Contactors, motor starters, safety switches and disconnects, and individually
mounted circuit breakers.
a)
b)
c)
d)
e)
f)
Name of load
System or branch
Voltage
Fed from (Panelboard or switchboard name)
Feeder conductor size and number of sets if greater than one.
5. Transfer switches.
a)
b)
c)
d)
e)
Name System or branch
Voltage
Fed from (Emergency and Normal sources)
Feeder conductor sizes and number of sets if greater than one.
6. Relays.
a)
b)
Name of load
Fed from (panelboard or switchboard name)
7. Shunt trip push buttons.
a)
b)
c)
J.
Name of load
Fed from (Panelboard or switchboard or individually mounted circuit breaker)
Location of circuit breaker.
Pull and junction boxes for emergency circuits shall be spot painted so they can be readily
identified. Color as indicated below:
1.
2.
3.
4.
5.
Life safety branch – yellow
Critical branch – orange
Equipment system – green
Fire alarm system – red
Other essential system supplied by the standby generator (not listed above) – purple.
K.
Switches: Where three or more switches and ganged, and elsewhere as indicated,
identify each switch with approved legend engraved on wall plate or, in large rooms with
multiple switches for general lighting the switch orientation shall match the location of the
lights.
L.
Receptacles: Identify panelboard and circuit number from which served. Use durable wire
markers, tags, or indelible ink on reverse side of plate. Provide permanent, laminated,
engraved labels or engraved device cover plates for receptacles in patient care locations,
identifying the panel name and branch circuit number. Labels and wire marker or tag
samples must be approved by the owner and architect. Engraved labels for emergency
system shall be red with white lettering. Normal system shall be black with white lettering.
Lettering shall be 1/4” high.
2.4
TOUCHUP PAINT
A. For Equipment: Provided by equipment manufacturer and selected to match equipment
finish.
B. For Non-equipment Surfaces: Matching type and color of undamaged, existing adjacent
finish.
C. For Galvanized Surfaces: Zinc-rich paint recommended by item manufacturer.
PART 3 – EXECUTION
3.1
ELECTRICAL EQUIPMENT AND MATERIAL INSTALLATION REQUIREMENTS
A. Install components and equipment to provide the maximum possible headroom where
mounting heights or other location criteria are not indicated.
B. Install items level, plumb, and parallel and perpendicular to other building systems and
components, except where otherwise indicated.
C. Install equipment to facilitate service, maintenance, and repair or replacement of
components. Connect for ease of disconnection, with minimum interference with other
installations.
D. Give right of way to raceways and piping systems installed at a required slope.
E. Install wires in raceway according to manufacturer’s written instructions and NECA’s
“Standard of Installation.”
F. Conductor Splices: Keep to the minimum and comply with the following:
1.
2.
3.
Install splices and taps that possess equivalent or better mechanical strength and
insulation ratings than unspliced conductors.
Use splice and tap connectors that are compatible with conductor material.
Conductors shall not be spliced in panelboards or switchboards.
G. Wiring at Outlets: Install with a t least 6 inches (300 mm) of slack conductor at each
outlet.
H. Connect outlets and components to wiring systems and to ground as indicated and
instructed by manufacturer. Tighten connectors and terminals, including screws and
bolts, according to equipment manufacturer’s published torque-tightening values for
equipment connectors. Where manufacturer’s torquing requirements are not indicated,
tighten connectors and terminals according to tightening requirements specified in UL
486A.
I.
Circuit terminations at motors shall be made with wire nuts and wing nuts.
J. Install devices to securely and permanently fasten and support electrical components.
K. Raceway Supports: Comply with NFPA 70 and the following requirements:
1.
2.
3.
4.
5.
6.
7.
8.
Conform to manufacturer’s recommendations for selecting and installing supports.
Install individual and multiple raceway hangers and riser clamps to support
raceways. Provide U bolts, clamps, attachments, and other hardware necessary for
hanger assembly and for securing hanger rods and conduits.
Support parallel runs of horizontal raceways together on trapeze- or bracket-type
hangers.
Spare Capacity: Size supports for multiple conduits so capacity can be increased
by a 25 percent minimum in the future.
Support individual horizontal raceways with separate, malleable iron pipe hangers
or clamps.
Hanger Rods: ¼ (6-mm) diameter or larger threaded steel, except as otherwise
indicated.
Spring Steel Fasteners: Specifically designed for supporting single conduits or
tubing. May be used in lieu 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 channel and slotted angle supports.
In vertical runs, arrange support so the load produced by the weight of the raceway
and the enclosed conductors is carried entirely by the conduit supports, with no
weight load on raceway terminals.
L. Miscellaneous Supports: Install metal channel racks for mounting cabinets, panelboards,
disconnects, control enclosures, pull boxes, junction boxes, transformers, and other
devices except where components are mounted directly to structural features of
adequate strength.
M. In open overhead spaces, cast boxes threaded to raceways need not be separately
supported, except where used for fixture support; support sheet-metal boxes directly
from the building structure or by bar hangers. Where bar hangers are used, attach the
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.
N. Sleeves: Install for cable and raceway penetrations of concrete slabs and walls, except
where core-drilled holes are used. Install 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.
O. Firestopping: Apply to cable and raceway penetrations of fire-rated floor and wall
assemblies. Perform firestopping as specified in Division 7.
P. Fastening: Unless otherwise indicated, securely fasten electrical items and their
supporting hardware to the building structure. Perform fastening according to the
following:
1.
2.
3.
4.
5.
6.
7.
8.
Fasten by means of wood screws or screw-type nails on wood; toggle bolts on
hollow masonry units; concrete inserts or expansion bolts on concrete or solid
masonry; and by machine screws, welded threaded studs, or spring-tension
clamps on steel.
Threaded studs driven by a power charge and provided with lock washers and nuts
may be used instead of expansion bolts, machine screws, or wood screws.
Welding to steel structure may be used only for threaded studs, not for conduits,
pipe straps, or any other items.
In partitions of light steel construction, use sheet-metal screws.
Drill holes in concrete beams so holes more than 1-1/2 inches (38 mm) deep do
not cut main reinforcing bars.
Drill holes in concrete so holes more than ¾ inch (19 mm) deep do not cut main
reinforcing bars.
Fill and seal holes drilled in concrete and not used.
Select fasteners so the load applied to any fastener does not exceed 25 percent of
the proof-test load.
Q. Install concrete pads and bases according to requirements of Division 3 Section “Castin-Place Concrete.”
R. Install identification devices where required.
1.
2.
3.
Install labels where indicated and at locations for best convenience of viewing
without interference with operation and maintenance of equipment.
Coordinate names, abbreviations, colors, and other designations used for electrical
identification with corresponding designations indicated on the Contract
Documents or required by codes and standards. Use consistent designations
throughout the Project.
Self-Adhesive Identification Products: Clean surfaces of dust, loose material, and
oily films before applying.
4.
5.
6.
Tag or label power circuits for future connection and circuits in raceways and
enclosures with other circuits. Identify source and circuit numbers in each cabinet,
pull box, junction box, and outlet box. Color coding may be used for voltage and
phase indication.
For Panelboards, provide framed, typed circuit schedules with explicit description
and identification of items controlled by each individual breaker. Description shall
include room location for the device/equipment served. Coordinate final room
numbers with the owner.
All communications boxes shall be clearly labeled with the system enclosed.
S. Contractor shall ensure that phasing and phase rotation are consistent throughout
facility.
3.2
ELECTRICAL SUPPORTING METHODS
A. Damp Locations and Outdoors: Hot-dip galvanized materials or non-metallic, U-channel
system components.
B. Dry Locations: Steel materials.
C. Support Clamps for PVC Raceways: Click-type clamp system.
D. Conform to manufacturer’s recommendations for selecting supports.
E. Strength of Supports: Adequate to carry all present and future loads (where future loads
are known: i.e. spare conduits), times a safety factor of at least 3; 200-lb- (90-kg-)
minimum design load.
3.3
WIRE COUNTS
A. Branch circuits do not have wire counts indicated on the drawings. The contractor shall
provide phase conductors, neutrals, switch legs, and equipment grounding conductors
as required for a complete, functional project. Neutral conductors shall not be used for
more than one branch circuit, for more than one multiwire branch circuit or for more than
one set of ungrounded feeder conductors unless specifically permitted by the National
Electrical Code. All power/receptacle/lighting branch circuits (and switch legs) and all
patient care area branch circuits shall have code-sized insulated equipment grounding
conductors. Where 3-way or 4-way switching is not clear, contact the architect.
3.4
CUTTING AND PATCHING
A. Cut, channel, chase, and drill floors, walls, partitions, ceilings and other surfaces
necessary for electrical installations. Perform cutting by skilled mechanics of the trades
involved.
B. Repair disturbed surfaces to match adjacent undisturbed surfaces.
3.5
TOUCHUP PAINTING
A. Thoroughly clean damaged area and provide primer, intermediate, and finish coats to
suit the degree of damage at each location.
B. Follow paint manufacturer’s written instructions for surface preparation and for timing
and application of successive coats.
3.6
TEMPORARY LIGHTING AND POWER
A. Provide a temporary electrical lighting and power distribution system of adequate size to
properly serve following requirements, including adequate feeder sizes to prevent
excessive voltage drop. Temporary work to be installed in accordance with National
Electrical Code Article 305.
B. Provide service and panelboards required above for lighting and power outlets.
C. Install and maintain barricade lighting where required to adequately protect against
possible damage and injury.
3.7
TESTS
A. Entire installation shall be free from improper grounds and from shorted and open
circuits. Test to ensure that entire system is in proper operating condition. Include test
results in closeout documents and forward to Architect/Engineer upon completion of test
and prior to call for final observation. The following test shall be performed and
submitted to engineer for evaluation:
1. Voltage and megger tests on feeder cabling.
2. Patient care area impedance and voltage testing and record in accordance with
NFPA 99.
B. The following tests shall be performed by the contractor or his designated supplier and
shall be submitted prior to call for final observation:
1. Test operation of ALL receptacles while operating under generator power and
include a letter verifying that all emergency receptacles are energized and
normal receptacles are not when operating under generator power
2. Fire alarm operation and certification on NFPA 72 form.
3.8
FIRE RATED WALL PENETRATIONS
A. Provide U.L. listed fire stop system sealants around all conduits passing through all
rated walls or floors in accordance with the U.L Fire Resistance Directory.
B. The selected system shall bear an approved U.L. penetration system number and be
installed in accordance with the selected system taking into account the construction and
rating of the assembly being penetrated and the type of penetration being made.
3.9
QUALITY ASSURANCE
A. Electrical work shall be guaranteed against faulty material or workmanship for a period of
not less than one year from the date of final acceptance. If the project is occupied or the
systems placed into operation in several phases at the request of the Owner, then the
guarantee of each system or piece of equipment used shall begin on the date each system
or piece of equipment was placed in satisfactory operation and accepted as such, in writing,
by the Owner. The use of building equipment for temporary service and testing does not
constitute the beginning of the guarantee.
B. Equipment and material provided under this Division shall be periodically inspected and
serviced by competent technicians. This function becomes the responsibility of the Owner
when the system is accepted by the Owner. The one year material and workmanship
guarantee is not intended to supplant normal inspection or service and shall not be
construed to mean the Contractor will provide free service nor to correct without charge,
breakage, maladjustment and other problems caused by improper maintenance.
C. Any equipment provided under this Division shall be turned over to the Owner in operating
condition. Instructions on further maintenance shall be included in the operating
instructions.
END OF SECTION
CONDUCTORS & CABLES 26-0519-1
SECTION 26-0519
CONDUCTORS AND CABLES (600V and below unless otherwise indicated)
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and
Supplementary Conditions and Division 1 Specification Sections, apply to this
Section.
1.2
SUMMARY
A. This Section includes the following:
1. Building wires and cables rated 600 V and less.
2. Connectors, splices, and terminations rated 600 V and less.
3. Sleeves and sleeve seals for cables.
1.3
SUBMITTALS
A. Product Data: For each type of product indicated.
B. Qualification Data: For testing agency.
C. Field quality-control test reports.
1.4
QUALITY ASSURANCE
A. Testing Agency Qualifications: In addition to requirements specified in Division 1
Section “Quality Control,” an independent testing agency shall meet OSHA criteria for
accreditation of testing laboratories, Title 29, Part 1907; or shall be a full-member
company of the InterNational Electrical Testing Association (NETA).
1. Testing Agency’s Field Supervisor: Person currently certified by the InterNational
Electrical Testing Association (NETA) or the National Institute for Certification in
Engineering Technologies, to supervise on-site testing specified in Part 3.
B. Listing and Labeling: Provide wires and cables specified in this Section that are listed
and labeled.
1. The Terms “Listed” and “Labeled”: As defined in NFPA 70, Article 100.
Laboratory” as defined in OSHA Regulation 1910.7.
C. Comply with NFPA 70 and ATSM specifications.
D. Use only new wire and cable with size, grade or insulation, voltage and
manufacturer’s name permanently marked on the outer covering at regular intervals.
1.5
DELIVERY, STORAGE, AND HANDLING
A. Deliver wires and cables according to NEMA WC26.
B. Deliver in complete coils and reels, with attached tags identifying size and installation.
C. Protect wire and cable from weather and damage during storage and handling.
1.6
COORDINATION
A. Coordinate layout and installation of cables with other installations.
B. Revise locations and elevations from those indicated, as required to suit field
conditions and as approved by Architect.
C. Set sleeves in cast-in-place concrete, masonry walls and other structural components
as they are constructed.
PART 2 –PRODUCTS
2.1
MANUFACTURERS
A. Manufacturer: Subject to compliance with requirements, provide products by one of
the following (for each type of product):
1. Wires and Cables:
a)
b)
c)
d)
e)
2.
Connectors for Wires and Cables:
a)
b)
c)
d)
e)
2.2
Anaconda
General Cable
Okonite
Rome
Southwire Company
AMP Incorporated
General Signal; O-Z/Gedney Unit
Monogram Co.; AFC
Square D Co.; Anderson
3M Company; Electrical Products Division
BUILDING WIRES AND CABLES
A. UL-Listed building wires and cables with conductor material, insulation type, cable
construction, and rating as specified in Part 3 “Wire and Insulation Applications”
Article.
B. Rubber Insulation Material: Comply with NEMA WC 3.
C. Thermoplastic Insulation Material: Comply with NEMA WC 5.
D. Cross-Linked Polyethylene Insulation Material: Comply with NEMA WC 7.
E. Wiring Methods (600V and below): Feeders, branch circuits, fire alarm circuits, and
Class 2 and 3 control circuits shall be type THHN/THWN, copper conductor, in
raceway, except as otherwise indicated. MC cable and AC cable shall not be used
except as permitted under specification section 26 0533.
F. Conductors for circuits outside building or in moist environments shall be type THWN.
G. Conductor Material: Copper.
H. Stranding: Solid conductor for No. 10 AWG and smaller; stranded conductor for larger
than No. 10 AWG. Smaller stranded conductor shall be permitted for control and fire
alarm. Provide stranded conductors for all motor circuits.
I.
2.3
Cord Drops and Portable Appliance Connections: Type SO, hard service cord with
stainless steel, wire mesh, strain relief device at terminations to suit application.
CONNECTORS AND SPLICES
A. UL-listed, factory-fabricated wiring connectors of size, ampacity rating, material, type,
and class for application and service indicated. Comply with Project’s installation
requirements and as specified in Part 2 “Building Wires and Cable” article.
2.4
SLEEVES FOR CABLES
A. Steel Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, galvanized
steel, plain ends.
B. Cast-Iron Pipe Sleeves: Cast or fabricated "wall pipe," equivalent to ductile-iron
pressure pipe, with plain ends and integral waterstop, unless otherwise indicated.
C. Sleeves for Rectangular Openings: Galvanized sheet steel with minimum 0.052- or
0.138-inch (1.3- or 3.5-mm) thickness as indicated and of length to suit application.
D. Sleeves for fire and/or smoke rated assemblies: Hilti Firestop sleeve or STI EZ-Path.
Coordinate sleeve selection and application with selection and application of
firestopping specified in Division 7 Section "Through-Penetration Firestop Systems."
2.5
SLEEVE SEALS
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:
B. Manufacturers: Subject to compliance with requirements, provide products by one of
the following:
C. Basis-of-Design Product: Subject to compliance with requirements, provide a product
by one of the following:
1. Advance Products & Systems, Inc.
2. Calpico, Inc.
3. Metraflex Co.
4. Pipeline Seal and Insulator, Inc.
D.
Description: Modular sealing device, designed for field assembly, to fill annular
space between sleeve and cable.
1. Sealing Elements: EPDM or NBR interlocking links shaped to fit surface of cable
or conduit. Include type and number required for material and size of raceway or
cable.
2. Pressure Plates: Plastic, Carbon steel or Stainless steel. Include two for each
sealing element.
3. Connecting Bolts and Nuts: Carbon steel with corrosion-resistant coating or
Stainless steel of length required to secure pressure plates to sealing elements.
Include one for each sealing element.
3.1
EXAMINATION
A. Examine raceways and building finishes to receive wires and cables for compliance
with requirements for installation tolerances and other conditions affecting
performance of wires and cables. Do not proceed with installation until unsatisfactory
conditions have been corrected.
3.2
INSTALLATION
A. Install wires and cables as indicated, according to manufacturer’s written instructions
and
NECA’s “Standard of Installation.”
B. Conceal cables in finished walls, ceilings and floors unless otherwise indicated.
C. Remove existing wires from raceway before pulling in new wires and cables.
D. Pull Conductors: 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.
E. Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable
grips, that will not damage cables or raceway.
F. Unless otherwise noted, each conduit raceway shall contain only those conductors
constituting a single feeder circuit.
G. The maximum number of single phase branch circuits in a single raceway shall be
limited to three as allowed by the N.E.C.
H. Install pull boxes in circuits or feeders over 100’ long.
I.
Make all splices and connections only at outlet, pull or junction boxes.
J. Provide #10AWG conductors for any branch circuit in excess of 100’ linear length
unless otherwise noted on the drawings.
K. Install exposed cables parallel and perpendicular to surfaces of exposed structural
members and follow surface contours where possible.
L. Support cables according to Division 26 Section “Common Work Results.”
M. Provide rated sleeves for cables penetrating fire and/or smoke rated elements
according to this specification and Division 7 Section “Firestopping.” Coordinate size
with number of cables to be routed through sleeve. Provide sleeves with 25% spare
capacity.
N. Color code conductors as follows:
1. 208Y/120V systems:
a)
b)
c)
d)
e)
Phase A, black
Phase B, red
Phase C, blue
Neutral, white
Ground, green
2. 480Y/277V systems:
a)
b)
c)
d)
e)
Phase A, brown
Phase B, orange
Phase C, yellow
Neutral, gray
Ground, green
(Use factory color coded conductors where commercially available. Otherwise, use black
conductors and band with colored electrical tape and pull at junction boxes and at
terminations.)
3.3
CONNECTIONS
A. Conductor Splices: Keep to minimum. Conductors shall not be spliced inside
panelboards.
B. Install splices and tapes that possess equivalent or better mechanical strength and
insulation ratings than conductors being spliced.
C. Use splice and tap connectors compatible with conductor material.
D. Wiring at Outlets: Install conductor at each outlet, with at least 12 inches of slack.
E. Connect outlets and components to wiring and to ground as indicated and instructed
by manufacturer.
F. Tighten electrical 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 and UL486B.
3.4
SLEEVE INSTALLATION FOR ELECTRICAL PENETRATIONS
A. Coordinate sleeve selection and application with selection and application of
firestopping specified in Division 7 Section "Through-Penetration Firestop Systems."
B
Concrete Slabs and Walls: Install sleeves for penetrations unless core-drilled holes
or formed openings are used. Install sleeves during erection of slabs and walls.
C.
Use pipe sleeves unless penetration arrangement requires rectangular sleeved
opening.
D.
Rectangular Sleeve Minimum Metal Thickness:
1. For sleeve rectangle perimeter less than 50 inches (1270 mm) and no side greater
than 16 inches (400 mm), thickness shall be 0.052 inch (1.3 mm).
2. For sleeve rectangle perimeter equal to, or greater than, 50 inches (1270 mm) and
1 or more sides equal to, or greater than, 16 inches (400 mm), thickness shall be
0.138 inch (3.5 mm).
E.
Fire-Rated Assemblies: Install sleeves for penetrations of fire-rated floor and wall
assemblies unless openings compatible with firestop system used are fabricated
during construction of floor or wall.
F.
Cut sleeves to length for mounting flush with both wall surfaces.
G.
Extend sleeves installed in floors 2 inches (50 mm) above finished floor level.
H.
Size pipe sleeves to provide 1/4-inch (6.4-mm) annular clear space between sleeve
and cable unless sleeve seal is to be installed or unless seismic criteria require
different clearance.
I.
Seal space outside of sleeves with grout for penetrations of concrete and
masonry and with approved joint compound for gypsum board assemblies.
J.
Interior Penetrations of Non-Fire-Rated Walls and Floors: Seal annular space
between sleeve and cable, using joint sealant appropriate for size, depth, and
location of joint according to Division 7 Section "Joint Sealants."
K.
Fire-Rated-Assembly Penetrations: Maintain indicated fire rating of walls, partitions,
ceilings, and floors at cable penetrations. Install sleeves and seal with firestop
materials according to Division 7 Section "Through-Penetration Firestop Systems."
L.
Roof-Penetration Sleeves: Seal penetration of individual cables with flexible boottype flashing units applied in coordination with roofing work.
M. Aboveground Exterior-Wall Penetrations: Seal penetrations using sleeves and
mechanical sleeve seals. Size sleeves to allow for 1-inch (25-mm) annular clear
space between pipe and sleeve for installing mechanical sleeve seals.
N.
3.5
3.6
Underground Exterior-Wall Penetrations: Install cast-iron "wall pipes" for sleeves.
Size sleeves to allow for 1-inch (25-mm) annular clear space between cable and
sleeve for installing mechanical sleeve seals.
SLEEVE-SEAL INSTALLATION
A.
Install to seal underground exterior-wall penetrations.
B.
Use type and number of sealing elements recommended by manufacturer for cable
material and size. Position cable in center of sleeve. Assemble mechanical sleeve
seals and install in annular space between cable and sleeve. Tighten bolts against
pressure plates that cause sealing elements to expand and make watertight seal.
FIRESTOPPING
A. Apply firestopping to electrical penetrations of fire-rated floor and wall assemblies to
restore original fire-resistance rating of assembly according to Division 7 Section
"Through-Penetration Firestop Systems."
3.7
FIELD QUALITY CONTROL
A. Testing Agency: Engage a qualified independent testing agency to perform field
quality-control testing.
B. Testing: On installation of wires and cables (#3 AWG and larger) and panelboard
feeders and before electrical circuitry has been energized, demonstrate product
capability and compliance with requirements.
C. Procedures: Perform each visual and mechanical inspection and electrical test stated
in NETA ATS (1999). Certify compliance with test parameters.
D. Correct malfunctioning conductors and cables at Project site, where possible, and
retest to demonstrate compliance/ otherwise, remove and replace with new units and
retest.
E. Perform NFPA 99 testing of all receptacles and circuits for grounding, impedance,
and other parameters as required by the authorities having jurisdiction.
END OF SECTION
ELECTRICAL DEMOLITION 26-0520-1
SECTION 26-0520
ELECTRICAL DEMOLITION
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
A. Drawings and general provisions of Contract, including General and Supplementary
Conditions and Division 1 Specification sections, apply to work specified in this section.
1.2
DESCRIPTION OF WORK
A. The extent of general building demolition work is shown on drawings. Coordinate the
required electrical work with the general demolition.
B. Demolition includes complete wrecking of structures and removal and disposal of
demolished materials as shown on drawings and herein specified.
C. Interior demolition includes complete wrecking of interior partitions, work above
ceilings, finishes, and structures and removal and disposal of demolished materials, as
shown on drawings and herein specified. Any items not retained by the Owner shall be
promptly disposed of off site by the Contractor.
1.3
JOB CONDITIONS
A. Conditions of Structures: The Owner assumes no responsibility for actual condition of
structures to be demolished.
1. Conditions of the structure existing at the time of inspections for bidding purposes
will be maintained by owner in so far as practicable. However, variations within
structure may occur by Owner’s removal and salvage operations prior to start of
demolition work. The drawings are schematic and provided as an aid in bidding.
The contractor shall visit the site and determine the actual conditions prior to
bidding.
B. Partial Removal: Items of salvable value to Contractor may be removed from structure
as work progresses. Salvaged items must be transported from site as they are
removed.
1. Storage or sale of removed items on site will not be permitted.
C. Traffic: Conduct demolition operations and removal of debris to ensure minimum
interference with roads, streets, walks, occupied areas, and other adjacent occupied or
used facilities.
D. Protections: Ensure safe passage of persons around or through area of demolition.
Conduct operations to prevent injury to adjacent buildings, structures, other facilities,
and persons.
1. Install temporary electrical services, lighting, etc., as required by existing
conditions, the Owner or authorities having jurisdiction.
E. Damages: Promptly repair damages caused to the facility or the adjacent facilities by
demolition operations at no cost to Owner.
F. Utility Services: Maintain existing utilities indicated to remain, keep in service, and
protect against damage during demolition operations. Allow no interruption in service
unless coordinated with Owner at least 24 hours in advance.
1. Do not interrupt utilities serving occupied or used facilities, except when authorized
in writing by authorities having jurisdiction. Provide temporary services during
interruptions to existing utilities, as acceptable to governing authorities.
2. Contractor will disconnect and seal utilities serving each structure to be
demolished, or interior area to be demolished, prior to start of demolition work.
G. If Contractor is required to disconnect utility services or other services to an occupied
area, the Contractor shall provide temporary or alternative service to that area. Get
owner’s approval before de-energizing any circuit. Schedule shut-down at least a week
in advance.
PART 2 – PRODUCTS (NOT APPLICABLE)
PART 3- EXECUTION
3.1
DEMOLITION
A. Remove all branch and feeder conduit and wire back to panelboards.
1. Where walls, ceilings, or floors are to remain remove all devices and wire where
indicated. Provide blank cover plate at outlet box and abandon empty conduit.
B. All items shown to remain active shall be furnished with necessary accessible junction
boxes and all conduit and wire as required to maintain circuit continuity.
C. All outlet boxes which must be removed due to demolition but which must remain
active in order to maintain circuit continuity shall be relocated into ceilings or walls and
shall be accessible.
D. All material fixtures and equipment to be reused shall be removed and stored on site.
Before reinstallation all items are to be cleaned, tested and prepared for re-use.
Fixtures shall be re-lamped and new ballasts installed.
3.2
DISPOSAL OF DEMOLISHED MATERIALS
A. General: Remove from site debris, rubbish, and other materials resulting from
demolition operations. Pay all fees related to removal and dumping.
1. Remove and dispose of interior demolition debris only.
2. Burning of removed materials from demolished structures will not be permitted on
site.
B. Removal:
1. Transport materials removed from demolished structures and dispose of off site.
END OF SECTION
CONTROL WIRING & CONNECTIONS FOR EQUIPMENT 26-0523-1
SECTION 26-0523
CONTROL WIRING AND CONNECTIONS FOR EQUIPMENT AND SYSTEMS
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
Conditions and Division 1 Specification sections, apply to work of this section.
B. This section is a Division 26 Common Work Results section, and is part of each Division
26 section making reference to electrical connections specified herein.
C. Any discrepancies between this section and other sections at Division 26 shall be
reported to the architect immediately. The architect reserves the right to select the most
restrictive solution.
1.2
DESCRIPTION OF WORK
A. Extent of electrical connections for equipment is indicated by drawings, schedules, and
specifications. Electrical connections are hereby defined to include, but are not
necessarily limited to, connections for providing electrical power to equipment.
B. Electrical power connections and control wiring specified in this section for equipment
and systems provided under other divisions of these specifications include the following:
1. Power connections for systems and equipment provided under Division 21/22/23 and
26, including, but not limited to:
a)
b)
c)
d)
Medical air, vacuum and gas alarms,
HVAC control panels and devices,
HVAC dampers, and
HVAC room pressure monitors.
2. Power connections for owner furnished, contractor installed equipment.
3. Power connections to master units and power supplies of communications, data, and
security equipment furnished by the owner or under other divisions of the
specifications.
4. Control wiring not included in Division 21/22/23. Where control wiring is not specified
under Division 21/22/23, provide control wiring in accordance with electrical and
mechanical drawings and shop drawings furnished under Division 21/22/23.
5. Power and control connections for door controls and door security systems shown on
the electrical or architectural drawings. See 260533 for related door control conduit
and box requirements. See Div. 28, Fire Alarm for related requirements.
C. Junction boxes and disconnect switches required for motors and other electrical units of
equipment are specified in applicable Division 26 sections.
D. Refer to sections of other Divisions for specific individual equipment power
requirements.
1.3
QUALITY ASSURANCE
A. NEMA Compliance: Comply with applicable portions of NEMA standards pertaining to
electrical connections for equipment.
B. ANSI Compliance: Comply with applicable ANSI standards, pertaining to products and
installations of electrical connections.
PART 2 – PRODUCTS
2.1
ACCEPTABLE MANUFACTURERS
A. Manufacturer: Subject to compliance with requirements, provide products of one of the
following (for each type of product):
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
2.2
Adalet-PLM Div., Scott and Fetzer Co.
ALCOA Conductor Products Co.
AMP Products Corp.
Appleton Electric Co.
Arrow-hart Div., Crouse-Hinds Co.
Atlas Technologies, Inc.
Bishop Div., General Signal Corp
Burndy Corp.
Cable Connection Corp.
Ideal Industries, Inc.
Pyle National Co.
Reliable Electric Co.
T and B/Thomas and Betts Corp.
MATERIALS AND COMPONENTS:
A. General: For each electrical connection indicated, provide complete assembly of
materials, including but not limited to pressure connectors, terminals (lugs), electrical
insulating tape, heat-shrinkable insulating tubing, cable ties, solderless wire nuts, and
other items and accessories as needed to complete splices and termination of types
indicated.
B. Wire, Cable and Connectors:
1. General: Provide wires, cables and connectors complying with Division 26 Basic
Materials and Methods section “Wires and Cables.”
2. Wire: Unless otherwise indicated, provide wires/conductors for electrical connections
which match wires/conductors of wire supplying power. Circuit terminations for motors
shall be made with wire nuts and wing nuts.
C. Electrical Connection Accessories:
1. Provide electrical insulating tape, heat-shrinkable insulating tubing and boots, wire
nuts and cable ties as recommended for use by accessories manufacturers for type
services indicated.
PART 3 –EXECUTION
3.1
INSTALLATION OF ELECTRICAL CONNECTION
A. Install electrical connections as indicated; in accordance with connector manufacturer’s
written instructions and with recognized industry practices, and complying with
requirements of NEC and NECA’s “Standard of Installation” to ensure that products fulfill
requirements.
B. Connect electrical power supply conductors to equipment conductors in accordance with
equipment manufacturer’s written instructions and wiring diagrams. Mate and match
conductor s of electrical connections for proper interface between electrical power
supplies and installed equipment.
C. Coordinate installation of electrical connections for equipment with equipment installation
work.
D. Cover splices with electrical insulation equivalent to, or of higher rating, than insulation
on conductors being spliced.
E. Prepare cables and wires, by cutting and stripping covering armor, jacket, and insulation
properly to ensure uniform and neat appearance where cables and wires are terminated.
F. Trim cables and wires, as short as practicable and arrange routing to facilitate
inspection, testing and maintenance.
G. Tighten wire-binding connector screws firmly.
H. Terminals for Designed Use: Each cable, conductor or wire shall terminate in a lug
designed for that particular use: (e.g., one conductor per lug unless lug is designed to
have additional conductors installed).
I.
Check and re-tighten all splices, joints, terminations and connections originally installed
by the manufacturer, where bolted, threaded or other mechanical means were used to
secure joints and splices.
1. This shall include, but not be limited to: main services entrance equipment,
distribution panels, branch circuit panels, motor control centers, transfer switches,
etc.
J. Provide flexible conduit for motor connections, and for other electrical equipment
connections where subjected to movement and vibration.
K. Provide liquid-tight flexible conduit for connection of motors and for other electrical
equipment where subject to movement and vibration, and also where subjected to one
or more of the following conditions:
1.
2.
3.
4.
5.
Exterior location
Moist or humid atmosphere where condensation can be expected to accumulate
Corrosive atmosphere
Subjected to water spray
Subjected to dripping oil, grease, or water
END OF SECTION
GROUNDING & BONDING 26-0526-1
SECTION 26-0526
GROUNDING AND BONDING
PART – GENERAL
1.1
RELATED DOCUMENTS
Conditions and Division 1 Specifications Sections, apply to this Section.
1.2
SUMMARY
A. This Section includes grounding of electrical system and equipments and basic
requirements for grounding for protection of life, equipment and basic requirements for
protection of life, equipment, circuits, and systems. Grounding requirements specified in
this Section may be supplement in other Sections of these Specifications.
1.3
SUBMITTALS
A. General: Submit each item this Article according to the Conditions of the Contract and
Division 1 Specification Selection.
B. Product Data for each type of product indicated.
C. Plans showing dimensioned as-built locations of grounding features specified including
the following:
1.
2.
Ground rods.
Grounding arrangements and connections for separately derived systems.
D. Qualification data for firms and persons specified in “Quality Assurance” Article to
demonstrate their capabilities and experience. Include lists of completed project names
and addresses, name and addresses of architects and owners, and other information
specified.
E. Field tests and observation reports certified by the testing organization and indicating
and interpreting the test reports for compliance with performance requirements.
1.4
QUALITY ASSURANCE
A. Testing Agency Qualification: A “Nationally Recognized Testing Laboratory” (NRTL) as
defined in OSHA Regulation 1910.7, or a full member company of the Inter National
Electrical Testing Association (NETA).
1.
Testing Agency Qualifications: A “Nationally Recognized Testing Laboratory”
(NRTL) as defined in OSHA Regulation 1910.7, or a full member company of the
InterNational Electrical Testing Association (NETA).
B. Comply with NFPA 70.
C. Comply with UL 467.
D. Listing and Labeling: Provide products specified in this Section that are listed and
labeled.
1.
2.
The Terms “listed” and “Labeled”: As defined in the National Electrical Code,
Article 100.
Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing
Laboratory” (NRTL) as defined in OSHA Regulation 1910.7.
PART 2 – PRODUCTS
2.1
MANUFACTURERS
A. Manufacturer: Subject to compliance with requirements, provide products by one of the
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
2.2
Apache Grounding; Nashville Wire Products
Boggs: H.L. Boggs & Co.
Chance: A.B. Chance Co.
Dossert Corp.
Erico Inc.; Electrical Products Group.
Galvan Industries, Inc.
Hastings Fiber Glass Products, Inc.
Heary Brothers Lightning Protection Co.
Ideal Industries, Inc.
ILSCO
Kearney
Korns: C.C. Korns Co.
Lightning Master Corp.
Lyncole XIT Grounding
O-Z/Gedney Co.
Raco, Inc.
Salisbury: W.H. Salisbury & Co., Utility
Thomas & Betts, Electrical
Utilco Co.
GROUNDING AND BONDING PRODUCTS
A. Governing Requirements: Where types, sizes, ratings, and quantities indicated are in
excess of National Electrical Code (NEC) requirements, the more stringent requirements
and the greater size, rating, and quantity indications govern.
2.3
WIRE AND CABLE GROUNDING CONDUCTORS
A. Comply with Division 26 Section “Conductors and Cables.” Conform to NEC Table 8
except as otherwise indicated, for conductor properties, including stranding.
1.
Material: Copper. Use aluminum only where contact with dissimilar metals can
corrode copper. Use only copper wire for both insulated and bare grounding
conductors in direct contact with earth, concrete, masonry, crushed stone and
similar materials.
B. Equipment Grounding Conductors: Insulated with green color insulation.
C. Underground Conductors: Bare, tinned, stranded, except as otherwise indicated.
D. Bare Copper Conductors: Conform to the following:
1.
2.
3.
2.4
Solid Conductors: ASTM B 3.
Assembly of Stranded Conductors: ASTM B 8.
Tinned Conductors: ASTM B 33.
MISCELLANEOUS CONDUCTORS
A. Grounding Bus: Bare, annealed-copper bars of rectangular cross section; with
insulators.
B. Braided Bonding Jumpers: Copper tape, braided No. 30 AWG bare copper wire,
terminated with copper ferrules.
C. Bonding Straps: Soft copper, 0.05 inch (1 mm) thick and 2 inches (50 mm) wide, except
as indicated.
2.5
CONNECTOR PRODUCTS
A.
Listed and labeled by a nationally recognized testing laboratory acceptable to authorities
having jurisdiction for applications in which used, and for specific types, sizes, and
combinations of conductors and other items connected.
B. Bolted Connectors for Conductors and Pipes: Copper or copper alloy, bolted pressuretype, with at least two bolts.
1.
Pipe Connectors: Clamp type, sized for pipe.
C. Welded Connectors: Exothermic-welding kits of types recommended by kit
manufacturer for materials being joined and installation conditions.
2.6
GROUNDING ELECTRODES AND TEST WELLS
A. Grounding Rods: Copper-clad steel.
1.
Size: ¾ inch by 120 inches (19 by 3000 mm).
3.1
APPLICATION
A. Equipment Grounding Conductors: Comply with NEC Article 250 for types, sizes, and
quantities of equipment grounding conductors, except where specific types, larger sizes,
or more conductors than required by NEC are indicated.
1.
Install equipment grounding conductor with circuit conductors for the items below
in addition to those required by Code:
a.
b.
c.
d.
e.
f.
g.
Feeders
Receptacle Circuits
Single-phase motor or appliance branch circuits
Three-phase motor or appliance branch circuits
Flexible raceway runs. Connect to conduit system at with lugs at both
ends.
Armored and metal-clad cable runs
Patient care area branch circuits
B. Separately Derived Systems: Where NEC requires grounding, ground according to NEC
Paragraph 250-30.
C. Where a “normal system” panelboard and emergency system panelboard feed the same
patient care area, bond the ground buses together using a #10 insulated copper
conductor (installed in conduit) in accordance with NFPA 70, Article 517.
D. Refer to 26 2726, Wiring Devices, and 26 0500, Common Work Results, for wiring
device grounding requirements.
F. Grounding Bus: Install in electrical and telephone equipment rooms, in rooms housing
service equipment, and elsewhere as indicated.
1.
2.
3.
Install bus on insulated spacers 1 inch (25 mm), minimum, from wall 6 inches
(150 mm) above finished floor, unless otherwise indicated.
Where indicated on both sides of doorways, route bus up to top of door frame,
across top of doorway, down to specified height above floor, and connect to
horizontal bus.
Provide dedicated #1/0 insulated ground conductor in conduit to each grounding
bus from main service ground bus.
G. Signal and Communication Equipment: For telephone, alarm, voice and data, and other
communication equipment, provide No. 4 AWG minimum insulated grounding conductor
in raceway from grounding electrode system to each service location, terminal cabinet,
wiring closet, and central equipment location.
1.
2.
3.2
Service and Central Equipment Locations and Wiring Closets: Terminate
grounding conductor on a 1/4-by-2-by-12-inch (6-by-50-by-300-mm) grounding
bus.
Terminal Cabinets: Terminate grounding conductor on cabinet grounding
terminal.
INSTALLATION
A. General: Ground electrical systems and equipment according to NEC requirements,
except where Drawings or Specifications exceed NEC requirements.
B. Grounding Rods:
1. Locate a minimum of 1-rod length from each other and at least the same distance
from any other grounding electrode.
2. Drive until tops are 2 inches (50 mm) below finished floor or final grade, except as
otherwise indicated. Interconnect with grounding-electrode conductors. Use
exothermic welds, except at test wells and as otherwise indicated. Make these
connections without damaging copper coating or exposing steel.
C. Grounding Conductors: Route along the shortest and straightest paths possible, except
as otherwise indicated. Avoid obstructing access or placing conductors where they may
be subjected to strain, impact, or damage.
D. Grounding for Steel Building Structure: Install a driven ground rod at base of each
corner column and at intermediate exterior columns at distances not more than 60 feet
(18 m) apart.
E. Common Ground Bonding with Lightning Protection System: Comply with NFPA 780
and UL 96 when interconnecting with lightning protection system. Bond electrical power
system ground directly to lightning protection system grounding conductor at closest
point to electrical service grounding electrode. Use bonding conductor sized same as
system grounding electrode conductor, and install in conduit.
F. Bonding Straps and Jumpers: Install in locations accessible for inspection and
maintenance, except where routed through short lengths of conduit.
1.
2.
3.
3.3
Bonding to Structure: Bond straps directly to basic structure, taking care not to
penetrate any adjacent parts.
Bonding to Equipment Mounted on Vibration Isolation Hangers and Supports:
Install so vibration is not transmitted to rigidly mounted equipment.
Use exothermic-welded connectors for outdoor locations, but if a disconnect-type
connection is required, use a bolted clamp.
CONNECTIONS
A. General: Make connections so possibility of galvanic action or electrolysis is minimized.
Select connectors, connection hardware, conductors, and connection methods so metals
in direct contact will be galvanically compatible.
1.
2.
3.
4.
5.
Use electroplated or hot-tin-coated materials to assure high conductivity and to
make contact points closer in order of galvanic series.
Make connections with clean, bare metal at points of contact.
Make aluminum-to-steel connections with stainless-steel separators and
mechanical clamps.
Make aluminum-to-galvanized steel connections with tin-plated copper jumpers
and mechanical clamps.
Coat and seal connections having dissimilar metals with inert material to prevent
future penetration of moisture to contact surfaces.
B. Exothermic-Welded Connections: Use for connections to structural steel and for
underground connections, except where test wells are provided. 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-Wire Terminations: For No. 2 AWG and larger, use pressure-type
grounding lugs. No. 10 AWG and smaller grounding conductors may be terminated with
winged pressure-type connectors.
D. Non-contact Metal Raceway Terminations: Where 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 electronically non-continuous
conduits at both entrances and exits with grounding bushings and bare grounding
conductors, except as otherwise indicated.
E. Tighten screws and bolts from grounding and bonding connectors and terminals
according to manufacturer’s published torque-tightening values. Where these
requirements are not available, use those specified in UL 486A and UL 486B.
F. Moisture Protection: Where insulated grounding conductors are connected to grounding
rods or grounding buses, insulate entire area of connection and seal against moisture
penetration of insulation and cable.
3.4
A. Independent Testing Agency: Engage an independent electrical testing organization to
perform tests described below.
B. Tests: Subject the completed grounding system to megger test at each location where a
maximum ground-resistance level is specified, at service disconnect enclosure
grounding terminal, and at ground test wells. Measure ground resistance not less than 2
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 per IEEE 81 Guide
for Measuring Resistivity / Fall of Potential.
C. Excessive Ground Resistance: Where resistance to ground exceeds specified values,
notify Owner promptly and include recommendations to reduce ground resistance and to
accomplish recommended work.
D. Report: Prepare test reports, certified by the testing organization, or ground resistance at
each test location. Include observations of weather and other phenomena that may
affect test results. Describe measures taken to improve test results.
F. Perform NFPA 99 testing of all receptacles and circuits for grounding, impedance, and
other parameters as required by the authorities having jurisdiction.
3.5
ADJUSTING AND CLEANING
A. Restore surface features, including vegetation, at areas disturbed by work of this
Section. Reestablish original grades, except as otherwise indicated. Where sod has
been removed, replace it as soon as possible after backfilling is completed. Restore
areas disturbed by trenching, storing of dirt, cable laying, and other activities to their
original condition. Include topsoiling, fertilizing, liming, seeding, sodding, sprigging, and
mulching. Comply with Section “Landscaping.” Maintain restored surfaces. Restore
disturbed paving as indicated.
END OF SECTION
RACEWAYS & BOXES 26-0533-1
SECTION 26-0533
RACEWAYS AND BOXES
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
1.2
SUMMARY
A. This Section includes raceways, fittings, boxes, enclosures, and cabinets for electrical
wiring. All wiring and cable shall be installed in conduit or raceway except multiconductor signal, control, and/or communication circuits not used for fire alarm, provided
the cable operates at less than 24 volts, has a plenum-rated outer jacket, is protected by
enclosure in walls and ceilings, is approved by the authorities having jurisdiction over the
work, is installed in accordance with applicable codes, and is not specifically required to
be in conduit by drawings or specifications. Provide conduit and boxes at doors as
shown on the electrical and architectural drawings for door security (i.e. key-pads,
position indicators, door switches, etc.) and for visual security system (i.e. cameras).
1. Raceways include the following:
a)
b)
c)
d)
e)
f)
RMC: Rigid Metallic Conduit
IMC: Intermediate Metallic Conduit
EMT: Electrical Metallic Tubing
FMC: Flexible Metallic Conduit
LFMC: Liquidtight Flexible Metallic Conduit
Wireways
2. Boxes, enclosures, and cabinets include the following:
a)
b)
c)
d)
e)
Device boxes
Floor boxes
Outlet boxes
Pull and junction boxes
Cabinets and hinged-cover enclosures
3. Related Sections include the following:
a)
b)
c)
d)
e)
1.3
Section “Firestopping”
Section “Common Work Results”
Section “Wiring Devices”
Section “Fire Alarm Systems”
Section “Telecommunications System Conduit and Boxes”
SUBMITTALS
A. Product Data: For surface raceways, wireways and fittings, floor boxes, hinged-cover
enclosures, and cabinets.
B. Shop Drawings: Include layout drawings showing components and wiring for
nonstandard boxes, enclosures, cabinets and underground manholes, pull boxes or
handholes.
C. Manufacturer Seismic Qualification Certification: Where applicable, submit certification
that enclosures and cabinets and their mounting provisions, including those for internal
components, will withstand seismic forces defined in Division 26 Section "Electrical
Supports and Seismic Restraints." Include the following:
1. Basis for Certification: Indicate whether withstand certification is based on actual
test of assembled components or on calculation.
a) The term "withstand" means "the cabinet or enclosure will remain in place without
separation of any parts when subjected to the seismic forces specified and the
unit will retain its enclosure characteristics, including its interior accessibility, after
the seismic event."
2. Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and
locate and describe mounting and anchorage provisions.
3. Detailed description of equipment anchorage devices on which the certification is
based and their installation requirements.
1.4
QUALITY ASSURANCE
A. Listing and Labeling: Provide raceways and boxes specified in this Section that are
listed and labeled.
1. The Terms “Listed” and “Labeled”: As defined in NFPA 70, Article 100.
B. Comply with NECA’s “Standard of Installation”.
C. Comply with NFPA 70.
1.5
COORDINATION
A. Coordinate layout and installation of raceways and boxes with other construction
elements to ensure adequate headroom, working clearance, and access.
PART 2 – PRODUCTS
2.1
MANUFACTURERS
A. Manufacturer: Subject to compliance with requirements, provide products of one of the
1. Metal Conduit and Tubing:
a) Alflex Corp.
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
Anamet, Inc.; Anaconda Metal Hose
Anixter Brothers, Inc.
Carol Cable Co., Inc.
Cole-Flex Corp.
Electri-flex Co.
Flexcon, Inc.; Coleman Cable Systems, Inc.
Grinnell Co.; Allied Tube and Conduit Div.
Monogram Co.; AFC
Spiraduct, Inc.
Triangle PWC, Inc.
Wheatland Tube Co.
2. Conduit Bodies and Fittings:
a)
b)
c)
d)
e)
f)
g)
America Electric; Construction Materials Group
Crouse-Hinds; Div. of Cooper Industries
Emerson Electric Co.; Appleton Electric Co.
Lamson & Sessions; Carlon Electrical Products
O-Z/Gedney; Unit of General Signal
Scott Fetzer Co.; Adalet-PLM.
Spring City Electrical Manufacturing Co.
3. Metal Wireways:
a) Hoffman Engineering Co.
b) Keystone/Rees, Inc.
c) Square D Co.
4. Boxes, Enclosures, and Cabinets:
a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
m)
n)
o)
p)
2.2
American Electric; Fl Industries.
Butler Manufacturing Co.; Walker Division
Crouse-Hinds; Div. of Cooper Industries
Electric Panelboard Co., Inc.
Erickson Electric Equipment Co.
Hoffman Engineering Co.; Federal Hoffman, Inc.
Hubbell Inc.; Killark Electric Manufacturing Co.
Hubbell Inc.; Raco, Inc.
Lamson & Sessions; Carlon Electrical Products
O-Z/Gedney; Unit of General Signal
Parker Electrical Manufacturing Co.
Robory Industries, Inc.; Electrical Division
Scott FetzerCo.; Adalet-PLM.
Spring City Electrical Manufacturing Co.
Thomas & Betts Corp.
Woodhead Industries, Inc.; Daniel Woodhead Co.
METAL CONDUIT AND TUBING
A.
Rigid Steel Conduit: ANSI C80.1
B.
Rigid Aluminum Conduit: ANSI C80.5
C.
IMC: ANSI C 80.6
D.
EMT and Fittings: ANSI C80.3
1. Fittings: Set-screw or compression type
E. FMC: Zinc-coated steel
F. LFMC: Flexible steel conduit with conduit/tubing materials
2.3
METAL WIREWAYS
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:
B. Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1. Cooper B-Line, Inc.
2. Hoffman.
3. Square D; Schneider Electric.
C. Description: Sheet metal sized and shaped as indicated, NEMA 250, Type 1 unless
otherwise indicated.
D. Fittings and Accessories: Include couplings, offsets, elbows, expansion joints, adapters,
hold-down straps, end caps, and other fittings to match and mate with wireways as
required for complete system.
E. Wireway Covers: Screw-cover type
F. Finish: Manufacturer's standard enamel finish.
2.4
SURFACE RACEWAYS
A. Surface Metal Raceways: Galvanized steel with snap-on covers.
standard enamel finish in color selected by Architect
Manufacturer's
1. Manufacturers: Subject to compliance with requirements, provide products by one of
the following:
a. Thomas & Betts Corporation.
b. Walker Systems, Inc.; Wiremold Company (The).
c. Wiremold Company (The); Electrical Sales Division.
2.5
OUTLET AND DEVICE BOXES
A. Sheet Metal Boxes: NEMA OS 1.
B. Cast-Metal Boxes: FB 1, Type FD, cast box with gasketed cover.
2.6
FLOOR BOXES
A. Floor Boxes: Cast metal, fully adjustable, rectangular.
2.7
PULL AND JUNCTION BOXES
A. Small Sheet Metal Boxes: NEMA OS 1.
B. Cast-Metal Boxes: NEMA FB 1, cast aluminum with gasketed cover.
2.8
ENCLOSERS AND CABINETS
A. Hinged-Cover Enclosures: NMA 250, Type 1, with continuous hinge cover and flush
latch.
1. Metal Enclosures: NEMA 250, Type 1. with continuous hinge cover and flush latch.
2. Metal Enclosures: Steel, Finished inside and out with manufacture’s standard
enamel.
3. Nonmetallic Enclosure: Plastic, finished inside with radio-frequency-resistant paint.
B. Cabinets: NEMA 250, Type 1, galvanized steel box with removable interior panel and
removable front, finished inside and out with manufacture’s standard enamel. Hinged
door in front cover with flush latch and concealed hinge. Key latch to match panelboards.
Including metal barriers to separate wiring of different systems and voltage, and
including accessory feet where requires for freestanding equipment.
2.9
HANDHOLES AND BOXES FOR EXTERIOR UNDERGROUND WIRING
A. Description: Comply with SCTE 77.
1. Color of Frame and Cover: Gray
2. Configuration: Units shall be designed for flush burial and have closed bottom,
unless otherwise indicated.
3. Cover: Weatherproof, secured by tamper-resistant locking devices and having
structural load rating consistent with enclosure.
4. Cover Finish: Nonskid finish shall have a minimum coefficient of friction of 0.50.
5. Cover Legend: Molded lettering, to indicate service.
6. Conduit Entrance Provisions: Conduit-terminating fittings shall mate with entering
ducts for secure, fixed installation in enclosure wall.
7. Handholes 12 inches wide by 24 inches long (300 mm wide by 600 mm long) and
larger shall have inserts for cable racks and pulling-in irons installed before concrete
is poured.
B. Polymer-Concrete Handholes and Boxes with Polymer-Concrete Cover: Molded of sand
and aggregate, bound together with polymer resin, and reinforced with steel or fiberglass
or a combination of the two.
1. Basis-of-Design Product: Subject to compliance with requirements, provide a
product by one of the following:
a.
b.
c.
d.
2.10
Armorcast Products Company.
Carson Industries LLC.
CDR Systems Corporation.
NewBasis.
SLEEVES FOR RACEWAYS
A. Steel Pipe Sleeves:
steel, plain ends.
ASTM A 53/A 53M, Type E, Grade B, Schedule 40, galvanized
B. Cast-Iron Pipe Sleeves: Cast or fabricated "wall pipe," equivalent to ductile-iron
pressure pipe, with plain ends and integral waterstop, unless otherwise indicated.
C. Sleeves for Rectangular Openings: Galvanized sheet steel with minimum 0.052- or
0.138-inch (1.3- or 3.5-mm) thickness as indicated and of length to suit application.
D. Coordinate sleeve selection and application with selection and application of firestopping
specified in Division Section "Through-Penetration Firestop Systems."
2.11
SLEEVE SEALS
A. Basis-of-Design Product: Subject to compliance with requirements, provide a product by
one of the following:
1.
2.
3.
4.
Advance Products & Systems, Inc.
Calpico, Inc.
Metraflex Co.
Pipeline Seal and Insulator, Inc.
B. Description: Modular sealing device, designed for field assembly, to fill annular space
between sleeve and cable.
1. Sealing Elements: EPDM or NBR interlocking links shaped to fit surface of cable or
conduit. Include type and number required for material and size of raceway or cable.
2. Pressure Plates: Plastic, Carbon steel or Stainless steel. Include two for each
sealing element.
3. Connecting Bolts and Nuts: Carbon steel with corrosion-resistant coating or
stainless steel of length required to secure pressure plates to sealing elements.
Include one for each sealing element.
2.12
SOURCE QUALITY CONTROL FOR UNDERGROUND ENCLOSURES
A. Handhole and Pull-Box Prototype Test: Test prototypes of handholes and boxes for
compliance with SCTE 77. Strength tests shall be for specified tier ratings of products
supplied.
1. Tests of materials shall be performed by a independent testing agency.
2. Strength tests of complete boxes and covers shall be by either an independent
testing agency or manufacturer. A qualified registered professional engineer shall
certify tests by manufacturer.
3. Testing machine pressure gages shall have current calibration certification complying
with ISO 9000 and ISO 10012, and traceable to NIST standards.
3.1
EXAMINATION
A. Examine surfaces to receive raceways, boxes, enclosures, and cabinets for compliance
with installation tolerances, accessibility and other conditions affecting performance of
raceway installation. Do not proceed with installation until unsatisfactory conditions have
been corrected.
3.2
WIRING METHODS
A. Outdoors: Use the following wiring methods unless specifically indicated otherwise on
the drawings:
1.
2.
3.
4.
Exposed: RMC or IMC
Concealed: RMC or IMC
Underground, Single Run: RMC
Connection to Vibrating Equipment (Including Transformers and Hydraulic,
Pneumatic, Electric Solenoid, or Motor-Driven Equipment): LFMC
5. Boxes and Enclosures: NEMA 250, Type 3R or Type 4
6. Cooling towers: Rigid steel with minimum 40 mil PVC coating
B. Indoors: Use the following wiring methods unless specifically indicated otherwise on the
drawings:
1. Exposed: EMT or IMC
Concealed: Above ceilings or in walls, EMT. FMC, MC cable, and AC cable shall
not be permitted for branch circuits, except for fixture whips and connection to
vibrating equipment.
2. In concrete: RMC or IMC
Beneath slab: RMC
3. Connection to Vibrating Equipment (Including Transformers and Hydraulic,
Pneumatic, Electric Solenoid, or Motor-Driven Equipment): FMC; except in wet or
damp locations, use LFMC
4. Damp or Wet Locations or locations exposed to mechanical damage: Rigid steel
conduit
3.3
INSTALLATION
A. Install raceways, boxes, enclosures, and cabinets as indicated, according to
manufacturers written instructions.
B. Minimum Raceway Size: 1/2-inch trade size (DN16). 3/4-inch trade size for homeruns.
C. Conceal conduit and EMT, unless otherwise indicated, within finished walls, ceilings, and
floors.
D. Keep raceways at least 6 inches (150 mm) away from parallel runs of flues and steam or
hot-water pipes. Install horizontal raceway runs above water and steam piping.
E. Install raceways level and square and at proper elevations. Provide adequate headroom.
F. Complete raceway installation before starting conductor installation.
G. Support raceways as specified in Division 26 Section “Basic Electrical Materials and
Methods.”
H. Use temporary closures to prevent foreign matter from entering raceways.
I.
Protect stub-ups from damage where conduits rise through floor slabs. Arrange so
curved portion of bends is not visible above the finished slab.
J. Make bends and offsets so ID is not reduced. Keep legs of bends in the same plane
and straight legs of offsets parallel, unless otherwise indicated.
K. Use raceway fittings compatible with raceways and suitable for use and location. For
intermediate steel conduit, use threaded rigid steel conduit fittings, unless otherwise
indicated.
L. Run concealed raceways, with a minimum of bends, in the shortest practical distance
considering the type of building construction and obstructions, unless otherwise
indicated.
M. Raceways shall not be embedded in slabs.
N. Install exposed raceways parallel to or at right angles to nearby surfaces or structural
members, and follow the surface contours as much as practical.
1. Run parallel or banked raceways together, on common supports where practical.
2. Make bends in parallel or banked runs from the same centerline to make bends
parallel. Use factory elbows only where elbows can be installed parallel; otherwise,
provide field bends for parallel raceways.
O. Join raceways with fittings designed and approved for the purpose and make joints tight.
1. Make raceway terminations tight. Use bonding bushings or wedges at connections
subject to vibration. Use bonding jumpers where joints cannot be made tight.
2. Use insulating bushings to protect conductors.
P. Tighten set screws of threadless fittings with suitable tools.
Q. Terminations: Where raceways are terminated with locknuts and bushings, align
raceways to enter squarely and install locknuts with dished part against the box. Where
terminations are not secure with 1 locknut, use 2 locknuts: 1 inside and 1 outside the
box.
R. Where raceways are terminated with threaded hubs, screw raceways or fittings tightly
into the hub so the end bears against the wire protection shoulder. Where chase nipples
are used, align raceways so the coupling is square to the box and tighten the chase
nipple so no threads are exposed.
S. Install pull wires in empty raceways. Use No. 14 AWG zinc-coated steel 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 the pull wire.
T. Telephone and Signal System Raceways, 2-Inch Trade Size (DN53) and Smaller: In
addition to the above requirements, install raceways in maximum lengths of 150 feet (45
m) and with a maximum of two 90-degree bends or equivalent. Separate lengths with
pull or junction boxes where necessary to comply with these requirements.
U. Install raceway sealing fittings according to manufacturer’s written instructions. Locate
fittings at suitable, approved, and accessible locations and fill them with UL-listed sealing
compound. For concealed raceways, install each fitting in a flush steel box with a blank
cover plate having a finish similar to that of adjacent plates or surfaces. Install raceway
sealing fittings at the following points:
1. Where conduits pass from warm to cold locations, such as the boundaries of
refrigerated spaces.
2. Where otherwise required by NFPA 70.
V. 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 the finished floor. Extend conductors to equipment with rigid steel
conduit; FMC may be used 6 inches (150 mm) above the floor. Install screwdriveroperated, threaded flush plugs flush with floor for future equipment connections.
W. Flexible Connections: Use maximum of 6 feet (1830 mm) of flexible conduit for recessed
and semi-recessed lighting fixtures; for equipment subject to vibration, noise
transmission, or movement; and for all motors. Use liquidtight flexible conduit in wet or
damp locations. Install separate ground conductor across flexible connection. Where
MC cable or AC cable is permitted, use hospital grade cable with the jacket listed as an
approved return path.
X. Set floor boxes level and adjust to finished floor surface.
Y. Set floor boxes level and trim after installation to fit flush to finished floor surface.
Z. Install hinged-cover enclosures and cabinets plumb. Support at each corner.
AA. Conduit not serving elevator equipment shall not be permitted to pass through elevator
shafts or elevator equipment rooms.
BB. Conduit not serving exit stairs or exit passageways shall not be permitted to pass
through those stairs or passageways.
CC. All conduit shall be installed above other trades (ductwork, piping, etc.) and supported
to the structure. In corridors, the conduit shall be installed to one or each side (either
high on the wall or at structure) for accessibility.
DD. Tie wires shall not be permitted for conduit support. All boxes shall be supported
independently from the building structure.
EE. Locate boxes so that openings are not obstructed by pipes, ducts, etc., and boxes are
accessible as required by NFPA 70.
FF. Insulated throat bushings shall be installed for all EMT terminations. Insulated
bushings shall be required for all IMC and rigid steel terminations.
GG. Install code sized green equipment grounding conductor in metallic conduit for all
patient care area branch circuits as required by NFPA 70, Article 517 and as otherwise
required for general receptacle, power, and lighting circuits.
HH. For interior exposed locations such as mechanical rooms, storage rooms, and similar
rooms, all parts of circuits below 10’0” that are not against a wall shall have rigid steel
conduit.
3.4
II.
No boxes or raceway shall be installed below 60” above finished floor in rooms
intended to house gas storage cylinders or dewars.
JJ.
Provide FireBlok fire suppression gaskets for boxes to be installed in fire rated
assemblies.
PROTECTION
A. Provide final protection and maintain conditions, in a manner acceptable to manufacturer
and installer that ensure coatings, finishes, and cabinets are without damage or
deterioration at the time of substantial completion.
1. Repair damage to galvanized finishes with zinc-rich paint recommended by
manufacturer.
2. Repair damage to PVC or paint finishes with matching touchup coating recommended
by manufacturer.
3.5
CLEANING
A. On completion of installation, including outlet fittings and devices, inspect exposed finish.
Remove burrs, dirt, and construction debris and repair damaged finish, including chips,
scratches, and abrasions.
END OF SECTION
TELECOMM SYSTEMS CONDUIT, BOXES & CABLE 26-0534-1
SECTION 26-0534
TELECOMMUNICATIONS SYSTEMS CONDUIT, BOXES, AND CABLE MANAGEMENT
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A. Drawings and general provisions of the contract including General and Supplementary
Conditions in Division 1 Specifications Sections, apply to this section.
1.2
SUMMARY
A. Provide a complete conduit and back box system for telecommunications systems
including but not limited to telephone, data processing, nurse call, intercom, paging, TV,
dictation, and other low voltage systems.
B. Related sections including the following:
1.
2.
1.3
Section 26 0500- Common Work Results
Section 26 0533- Raceways and Boxes
SUBMITTALS
A. Submit Raceways and Boxes in accordance with Section 26 0533.
1.4
QUALITY ASSURANCE
A. Comply with NFPA 70 for components and installation.
PART 2 - PRODUCTS
2.1
RACEWAY AND BOXES
A. Provide in accordance with 26 0533.
PART 3 - EXECUTION
3.1
EQUIPMENT INSTALLATION REQUIREMENT
A. Comply as required for contractor furnished and owner furnished telecommunications
systems.
B. Install items level, plumb, and perpendicular to other building systems and components,
except where otherwise indicated.
C. Coordinate work with telecommunications equipment vendors for contractor furnished
and owner furnished telecommunications equipment.
3.2
INSTALLATION
TELECOMM SYSTEMS CONDUIT, BOXES & CABLE 26-0534-2
A. For, telephone, data processing, dictation, and other telecommunications outlets,
provide a 4 11/ 16” square x 2” deep junction box with plaster ring. Multi-gang boxes
shall match single gang (except for width) and shall have multi-gang plaster ring.
B. For back boxes provide 3/4” (minimum) EMT conduit turned up into the nearest
accessible corridor ceiling space.
C. For special back boxes as required for nurse call and other systems. Install special back
boxes furnished by the system vendor.
D. Provide suitable pullwire in each conduit and an insulating bushing on each conduit
termination.
E. Provide 4 feet (w) by 8 feet (h), continuous, by 3/4 inch fire rated plywood terminal board
painted flat white on all walls of all telecommunications closets and rooms throughout
the project.
F. Backboxes for telephone/computer outlets shall be mounted at 18 inches above finished
floor unless noted otherwise. See specifications section 26 0533.
G. Public telephone outlets shall be mounted at 42 inches above finish floor unless noted
otherwise.
END OF SECTION
LOW-VOLTAGE TRANSFORMERS 26-2200-1
SECTION 26-2200
LOW-VOLTAGE TRANSFORMERS (600 V AND LESS)
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
1.2
SUMMARY
A. This Section includes dry-type distribution and specialty transformers rated 600 V and
less, with capacities up to 1000KVA.
1.3
SUBMITTALS
A. Product Data: Include data on features, components, ratings, and performance for each
type of transformer specified. Include dimensioned plans, sections, and elevation views.
Show minimum clearances and installed devices and features. Provide % impedance
within plus or minus 5%.
B. Wiring Diagrams: Detail wiring and identify terminals for tap changing and connecting
field-installed wiring.
C. Product Certificates: Signed by manufacturers of transformers certifying that the
products furnished comply with requirements.
D. Factory Test Reports: Certified copies of manufacturer’s design and routine factory tests
required by reference standards.
E. Sound-Level Test Reports: Certified copies of manufacturer’s sound-level tests
applicable to equipment for this project.
F. Field Test Reports: Indicate and interpret test results for tests specified in Part 3.
G. Maintenance Data: For transformers to include in the maintenance manuals specified in
Division 1.
1.4
QUALITY ASSURANCE
A. Listing and Labeling: Provide transformers specified in this Section that are listed and
labeled.
1.
2.
The Terms “Listed” and “Labeled”: As defined in NFPA 70, Article 100.
B. Comply with IEEE C57.12.91.
C. Comply with NFPA 70.
1.5
DELIVERY, STORAGE, AND HANDLING
A. Temporary Heating: Apply temporary heat according to manufacturer’s written
instructions within the enclosure of each ventilated-type unit throughout periods during
which equipment is not energized and is not in a space that is continuously under normal
control of temperature and humidity.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A. Manufacturer: Subject to compliance with requirements, provide products by on of the
1.
2.
3.
4.
2.2
Cutler-Hammer/Westinghouse
General Electric
Siemens
Square D
TRANSFORMERS, GENERAL
A. Description: Factory-assembled and -tested, air-cooled units of types specified,
designed for 60-Hz service.
B. Cores: Grain-oriented, non-aging silicon steel.
C. Coils: Continuous windings without splices, except for taps.
D. Internal Coil Connections: Brazed or pressure type.
E. Enclosure: Class complies with NEMA 250 for the environment in which installed.
F. Low-Sound-Level Units: Where indicated on drawings, minimum of 3 dBA less than
NEMA ST 20 standard sound levels when factory tested according to IEEE C57.12.91.
2.3
GENERAL-PURPOSE DISTRIBUTION AND POWER TRANSFORMERS
A. Comply with NEMA ST 20 and list and label as complying with UL 1561.
B. Cores: One leg per phase.
C. Windings: One coil per phase in primary and secondary.
D. Enclosure: Indoor, ventilated. Core and coil shall be encapsulated within resin
compound, sealing out moisture and air. (OPTION)
E. Insulation Class: 185 or 220 deg C class for transformers 15 kVA or smaller; 220 deg C
class for transformers larger than 15 kVA. Temperature rise shall be as indicated below
unless otherwise indicated on the drawings:
1.
Rated Temperature Rise: 150 deg C maximum rise above 40 deg C, for 220 deg
C class insulation; 115 deg C maximum rise for 185 deg C. class insulation.
F. Taps: For transformers 3 kVA and larger, full-capacity taps in high-voltage windings are
as follows:
1.
2.
Taps, 3 through 24 kVA: Two 5-percent taps below rated high voltage.
Taps, 25kVA and Larger: Six 2.5-percent taps, 2 above and 4 below rated high
voltage.
G. Energy Efficiency for Transformers Rated 15KVA and Larger:
1.
2.
Complying with NEMA TP-1, Class 1 efficiency levels
Tested according to NEMA TP-2.
H. Wall-Mounting Brackets: Manufacturer’s standard brackets for transformers up to 75
kVA.
I. Transformer impedances shall be as indicated below:
2.4
BUCK-BOOST TRANSFORMERS
A. Units comply with NEMA ST 1 and are listed and labeled as complying with UL 506 or
UL 1561.
B. Description: Self-cooled dry type, rated for continuous duty, and connected as
autotransformers to provide the percentage of buck or boost indicated.
2.5
CONTROL AND SIGNAL TRANSFORMERS
A. Units comply with NEMA ST 1 and are listed and labeled as complying with UL 506.
B. Ratings: Continuous duty. If rating is not indicated, provide capacity exceeding peak
load by 50 percent minimum.
C. Description: Self-cooled, 2 windings.
2.6
FINISHES
A. Indoor Units: Manufacturer’s standard paint over corrosion-resistant pretreatment and
primer.
B. Outdoor Units: Comply with ANSI C57.12.28.
2.7
Source Quality Control
A. Factory Tests: Design and routine tests comply with referenced standards.
B. Factory Sound-Level Tests: Conduct sound-level tests on equipment for this Project if
specified sound levels are below standard ratings.
3.1
INSTALLATION
A. Comply with safety requirements of IEEE C2.
B. Arrange equipment to provide adequate spacing for access and for circulation of cooling
air.
C. Identify transformers and install warning signs according to Division 26 Section
“Common Work Results for Electrical.”
D. Tighten electrical 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 and UL 486B.
E. Provide channel iron rails, with spring or rubber sheet isolators, under all floor mounted
transformers. Wall mounted transformers shall be suspended from the structure above
or on brackets secured to the wall to carry transformer weight.
F. Provide non-fused, lockable disconnect for each transformer not located within line of
sight from its primary overcurrent protection device. Disconnect shall be located at the
transformer and installed on the transformer primary feeder. Disconnect rating shall not
be less than the associated transformer primary overcurrent protection rating.
3.2
GROUNDING
A. Separately Derived Systems: Comply with NFPA 70 requirements for connecting to
grounding electrodes and for bonding to metallic piping near the transformer.
B. Comply with Division 26 Section “Grounding” for materials and installation requirements.
3.3
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 3 percent at maximum load
conditions. Submit recording and tap settings as test results.
B. Connect buck-boost transformers to provide nameplate voltage of equipment being
served, plus or minus five percent, at secondary terminals.
C. Output Settings Report: Prepare a written report recording output voltages and tap
settings.
END OF SECTION
PANELBOARDS 26-2416-1
SECTION 26-2416
PANELBOARDS
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
1.2
SUMMARY
A. This Section includes lighting and power panelboards and associated auxiliary
equipment rated 600 V and less.
B. Related Sections include the following:
1.
1.3
Division 26 Section “Common Work Results for Electrical Systems” for general
materials and installation methods.
SUBMITTALS
A. Product Data: For each type of panelboard, accessory item, and component specified.
B. Shop Drawings: For panelboards. Include dimensioned plans, sections, and elevations.
Show tabulations of installed devices, major features, and voltage rating. Include the
following:
1.
2.
3.
4.
5.
Enclosure type with details for types other than NEMA 250, Type 1.
Bus configuration and current ratings.
Short-circuit current rating of panelboard.
Features, characteristics, ratings, and factory settings of individual protective
devices and auxiliary components.
Wiring Diagrams: Details of schematic diagram including control wiring and
differentiating between manufacturer-installed and field-installed wiring.
C. Qualification Data: For firms and persons specified in “Quality Assurance” Article.
D. Field Test Reports: Indicate and interpret test results for compliance with performance
requirements.
E. Panelboard Schedules: For installation in panelboards. Submit final versions after load
balancing.
F. Maintenance Data: For panelboard components to include in the maintenance manuals
specified in Division 1. Include manufacturer’s written instructions for testing circuit
breakers.
1.4
QUALITY ASSURANCE
A. Listing and Labeling: Provide products specified in this Section that are listed and
labeled.
1.
2.
The Terms “Listed” and “Labeled”: As defined in the National Electrical Code,
Article 100.
C. Comply with NEMA PB 1.
1.5
EXTRA MATERIALS
A. Keys: 6 spares of each type for panelboard cabinet lock.
PART 2 – PRODUCTS
2.1
MANUFACTURERS
A. Manufacturer: Subject to compliance with requirements, provide products by one of the
1.
2.
3.
4.
2.2
Cutler-Hammer/Westinghouse
General Electric
Siemens
Square D
PANELBOARD FABRICATION
A. Enclosures: Flush- or surface-mounted cabinets as indicated. NEMA PB 1, Type 1,
unless otherwise indicated to meet environmental conditions at installed location.
1.
2.
Outdoor Locations: NEMA 250, Type 3R.
Other Wet or Damp Indoor Locations: NEMA 250, Type 4.
B. Front: Secured to box with concealed trim clamps, unless otherwise indicated. Front for
surface mounted panelboards shall be same dimensions as box. Fronts for flush
panelboards shall overlap box, unless otherwise indicated.
C. Phase, Neutral and Ground Buses:
1.
2.
3.
Material: Hard drawn copper, 98 percent conductivity.
Equipment Ground Bus: Adequate for feeder and branch-circuit equipment
ground conductors. Bonded to box.
Isolated Ground Bus (where indicated on plans): Adequate for feeder and
branch-circuit equipment ground conductors. Insulated from box.
D. Conductor Connectors: Suitable for use with conductor material and sizes.
1.
2.
3.
Main and Neutral Lugs: Mechanical type.
Ground Lugs and Bus-Configured Terminators: Mechanical type.
Feed Through Lugs: Mechanical type. Locate at opposite end of bus from
incoming lugs or main device.
4.
Subfeed (Double) Lugs: Mechanical type. Locate at same end of bus as
incoming lugs or main device.
E. Directory Frame: Metal, mounted inside each panelboard door or approved plastic
holder.
F. Service Equipment Approval: Where indicated, listed for use as service equipment for
panelboards with main service disconnect.
G. Future Devices: Equip with mounting brackets, bus connections, and necessary
appurtenances, for the overcurrent protective device ampere ratings indicated for future
installation of devices.
H. Panelboard Short-Circuit Rating: Fully rated to interrupt symmetrical short circuit current
available at terminals.
I. Circuit breaker types shall be selected to provide selective coordination above 0.1
seconds as determined be the electrical systems protective device study. Provide
electronic trip breakers with adjustable settings as required for this selective
coordination.
J. Shunt Trip: Where indicated.
K. Provide shunt trips for all breakers serving cooking equipment under exhaust hood in
kitchens.
L. Circuit breakers shall be bolt-on or I-line style and have interrupting ratings as shown on
the drawings and/or panelboard/switchboard schedules. Where ratings are not
specifically indicated provide interrupting ratings as shown below:
1.
208Y/120-volts:
Frame Size
100 amp
200 amp
400 amp
800 amp
2.
480Y/277-volts:
Frame Size
100 amp
200 amp
400 amp
800 amp
3.1
Minimum Symmetrical AIC
at 240-volts
18000 amp
25000 amp
42000 amp
42000 amp
INSTALLATION
Minimum Symmetrical AIC
at 480-volts
14000 amps
25000 amps
30000 amps
30000 amps
A. Install panelboards and accessory items according to NEMA PB 1.1.
B. Mounting Heights: Top of trim 74 inches (1880 mm) above finished floor, unless
otherwise indicated.
C. Mounting: Plumb and rigid without distortion of box. Mount flush panelboards uniformly
flush with wall finish.
D. Circuit Directory: Type directory to indicate installed circuit loads after balancing
panelboard loads. Obtain approval before installing.
E. Install filler plates in unused spaces.
F. Provision for Future Circuits at Flush Panelboards: Stub four 1-inch (27-GRC) empty
conduits from panelboard into accessible ceiling space or space designated to be ceiling
space in the future. Stub four 1-inch (27-GRC) empty conduits into raised floor space or
below slab not on grade.
G. Wiring in Panelboard Gutters: Arrange conductors into groups, and bundle and wrap
with wire ties after completing load balancing.
H. Provide four locking devices per panel to be installed on spare circuit breakers unless
otherwise noted or designated by the Owner.
3.2
IDENTIFICATION
A. Identify field-installed wiring and components and provide warning signs as specified in
Division 26 Section “Common Work Results for Electrical Systems.”
B. Panelboard Nameplates: Label each panelboard with engraved laminated-plastic or
metal nameplates mounted with corrosion-resistant screws.
3.3
GROUNDING
A. Make equipment grounding connections for panelboards as indicated.
B. Provide ground continuity to main electrical ground bus as indicated.
3.4
CONNECTIONS
A. Tighten electrical connectors and terminals, including grounding connections, according
to manufacturer’s published torque-tightening values. Where manufacturer’s torque
values are not indicated, use those specified in UL 486A and UL 486B.
3.5
A. Balancing Loads: After Substantial Completion, but not more than 2 months after Final
Acceptance, conduct load-balancing measurements and make circuit changes as
follows:
1.
2.
3.
4.
5.
6.
Perform Loads: After Substantial completion, but not more than 2 months after
Final Acceptance, conduct load-balancing measurements and make circuit
changes as follows:
Perform measurements during period of normal working load as advised by
Owner. For healthcare facilities, load readings shall be taken weekdays between
8:00 AM and 12:00 noon.
Perform load-balancing circuit changes outside normal occupancy/working
schedule of the facility. Make special arrangements with Owner to avoid
disrupting critical 24-hour services such as fax machines and online data
processing, computing, transmitting, and receiving equipment.
Recheck loads after circuit changes 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 required to meet this
minimum requirement.
Report, in writing, any loads that exceed 80% of the circuit rating.
B. Testing: After installing panelboards and after electrical circuitry has been energized,
demonstrate product capability and compliance with requirements.
1.
2.
Procedures: Perform each visual and mechanical inspection and electrical test
stated in NETA ATS, Section 7.5 for switches and Section 7.6 for molded-case
circuit breakers. Certify compliance with test parameters.
Correct malfunctioning units on-site, where possible, and retest to demonstrate
compliance; otherwise, remove and replace with new units, and retest.
C. Infrared Scanning: After Substantial Completion, but not more than 2 months after
Final Acceptance, perform an infrared scan of each panelboard. Remove fronts to
make joints and connections accessible to a portable scanner.
1.
2.
3.
3.6
Follow-up Infrared Scanning: Perform an additional follow-up infrared scanning of
each panelboard 11 months after date of Substantial Completion.
Instrument: Use an approved infrared scanning device designed to measure
temperature or detect significant deviations from normal values. Provide
calibration record for device used.
Record Infrared Scanning: Prepare a certified report identifying panelboards
checked and describing results of scanning. Include notation of deficiencies
detected, remedial action taken, and observations after remedial action.
ADJUSTING
A. Set field-adjustable switches and circuit-breaker trip ranges as indicated.
3.7
CLEANING
A. On completion of installation, inspect interior and exterior of panelboards. Remove paint
splatters and other spots, dirt, and debris. Touch up scratches and mars of finish to
match original finish.
END OF SECTION
WIRING DEVICES 26-2726-1
SECTION 26-2726
WIRING DEVICES
PART 1 - GENERAL
1.1
A.
1.2
A.
1.3
RELATED DOCUMENTS
Drawings and general provisions of the Contract, including General and
Supplementary Conditions and Division 1 Specification Sections, apply to this Section.
SUMMARY
This Section includes receptacles, connectors, switches, sensors and finish plates.
SUBMITTALS
A.
Product Data: For each type of product indicated.
B.
Operation and Maintenance Data: For wiring devices to include in all manufacturers'
packing label warnings and instruction manuals that include labeling conditions.
1.4
QUALITY ASSURANCE
A.
Source Limitations: Obtain each type of wiring device and associated wall plate
through one source from a single manufacturer. Insofar as they are available, obtain
all wiring devices and associated wall plates from a single manufacturer and one
source.
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.
C.
Comply with NFPA 70.
1.5
A.
COORDINATION
Receptacles for Owner-Furnished Equipment: Match plug configurations.
1.
Cord and Plug Sets: Match equipment requirements.
PART 2 - PRODUCTS
2.1
A.
MANUFACTURERS
Manufacturers' Names: Shortened versions (shown in parentheses) of the following
manufacturers' names are used in other Part 2 articles:
1.
2.
3.
4.
5.
6.
Cooper Wiring Devices; a division of Cooper Industries, Inc. (Cooper).
Hubbell Incorporated; Wiring Device-Kellems (Hubbell).
Leviton Mfg. Company Inc. (Leviton).
Pass & Seymour/Legrand; Wiring Devices & Accessories (Pass & Seymour).
Bryant Electric
Arrow Hart
7.
8.
2.2
GE Company; GE Wiring Devices (GE)
Lutron
STRAIGHT BLADE RECEPTACLES
A.
Convenience Receptacles, 125 V, 20 A:
configuration 5-20R, and UL 498.
B.
Hospital-Grade, Duplex Convenience Receptacles, 125 V, 20 A:
Comply with
NEMA WD 1, NEMA WD 6 configuration 5-20R, and UL 498 Supplement SD.
C.
Tamper-Resistant “Safety Type” Convenience Receptacles, 125 V, 20 A: Comply with
NEMA WD 1, NEMA WD 6 configuration 5-20R, and UL 498.
1.
2.3
Comply with NEMA WD 1, NEMA WD 6
Description: Labeled to comply with NFPA 70, "Health Care Facilities" Article,
"Pediatric Locations" Section.
GFCI RECEPTACLES
A.
General Description: Straight blade, feed-through type. Comply with NEMA WD 1,
NEMA WD 6, UL 498, and UL 943, Class A, and include indicator light that is lighted
when device is tripped.
B.
Duplex GFCI Convenience Receptacles, 125 V, 20 A:
C.
Hospital-Grade, Duplex GFCI Convenience Receptacles, 125 V, 20 A: Comply with
UL 498 Supplement SD.
2.4
TWIST-LOCKING RECEPTACLES
A.
Single Convenience Receptacles, 125 V, 20 A:
NEMA WD 6 configuration L5-20R, and UL 498.
B.
Isolated-Ground, Single Convenience Receptacles, 125 V, 20 A:
1.
2.5
A.
Comply with NEMA WD 1,
Description: Comply with NEMA WD 1, NEMA WD 6 configuration L5-20R, and
UL 498. Equipment grounding contacts shall be connected only to the green
grounding screw terminal of the device and with inherent electrical isolation from
mounting strap. Isolation shall be integral to receptacle construction and not
dependent on removable parts.
PENDANT CORD-CONNECTOR DEVICES
Description: Matching, locking-type plug and receptacle body connector; NEMA WD 6
configurations L5-20P and L5-20R, heavy-duty grade.
1.
Body: Nylon with screw-open cable-gripping jaws and provision for attaching
external cable grip.
2.
External Cable Grip: Woven wire-mesh type made of high-strength galvanizedsteel wire strand, matched to cable diameter, and with attachment provision
designed for corresponding connector.
2.6
A.
2.7
CORD AND PLUG SETS
Description: Match voltage and current ratings and number of conductors to
requirements of equipment being connected.
1.
Cord: Rubber-insulated, stranded-copper conductors, with Type SOW-A jacket;
with green-insulated grounding conductor and equipment-rating ampacity plus a
minimum of 30 percent.
2.
Plug: Nylon body and integral cable-clamping jaws. Match cord and receptacle
type for connection.
SNAP SWITCHES
A.
Comply with NEMA WD 1 and UL 20.
B.
Switches, 120/277 V, 20 A: Toggle Type
C.
Pilot Light Switches, 20 A: Toggle Type
1.
D.
Description: Single pole, with neon-lighted handle, illuminated when switch is
"ON."
Key-Operated Switches, 120/277 V, 20 A:
1.
Description: Single pole, with factory-supplied key in lieu of switch handle.
E.
Single-Pole, Double-Throw, Momentary Contact, Center-Off Switches, 120/277 V,
20 A; for use with mechanically held lighting contactors.
F.
Key-Operated, Single-Pole, Double-Throw, Momentary Contact, Center-Off Switches,
120/277 V, 20 A; for use with mechanically held lighting contactors, with factorysupplied key in lieu of switch handle.
2.8
WALL-BOX DIMMERS
A.
Dimmer Switches: Modular, full-wave, solid-state units with integral, quiet on-off
switches, with audible frequency and EMI/RFI suppression filters.
B.
Control: Continuously adjustable slider with single-pole or three-way switching.
Comply with UL 1472.
C.
Incandescent Lamp Dimmers: 120 V; control shall follow square-law dimming curve.
On-off switch positions shall bypass dimmer module.
1.
D.
Wattage as required; dimmers shall require no derating when ganged with other
devices.
Fluorescent Lamp Dimmer Switches: Modular; compatible with dimmer ballasts; trim
potentiometer to adjust low-end dimming; dimmer-ballast combination capable of
consistent dimming with low end not greater than 10 percent of full brightness.
E.
2.9
A.
LED Dimmer Switches: Modular; compatible with dimming driver; dimmer-driver
combination capable of consistent dimming with low end not greater than 10 percent of
full brightness.
OCCUPANCY SENSORS
Wall-Switch Sensors:
1.
Products:
Subject to compliance with requirements, provide one by
manufacturers listed in Part 2.1 or the following:
a.
2.
B.
Description: Dual technology, with both passive-infrared- and ultrasonic-type
sensing, 120/277 V, adjustable time delay up to 30 minutes, 1800-degree field of
view, and a minimum coverage area of 900 sq. ft. (84 sq. m).
Long-Range Wall-Switch Sensors:
1.
Products:
a.
2.
C.
Watt Stopper (The).
sensing, 120/277 V, adjustable time delay up to 30 minutes, 110-degree field of
view, and a minimum coverage area of 1200 sq. ft. (111 sq. m).
Wide-Range Wall-Switch Sensors:
1.
Products:
a.
2.
D.
Watt Stopper (The)
Watt Stopper (The)
Description: Passive-infrared type, 120/277 V, adjustable time delay up to 30
minutes, 150-degree field of view, with a minimum coverage area of 1200 sq. ft.
(111 sq. m).
Ceiling Mounted Sensors:
1.
Products:
a.
2.
Watt Stopper (The)
sensing, adjustable time delay up to 30 minutes, 360-degree field of view, and a
minimum coverage area of 900 sq. ft. (84 sq. m).
a.
120/277V when fixtures are controlled by a single sensor.
E.
b.
24V when fixtures are controlled by multiple sensors. Provide with required
120/277V power supplies.
c.
24V when normal and critical branch lighting circuits are controlled
simultaneously by one or more sensors. Provide with separate normal and
critical branch 120/277V power supplies.
Exterior Occupancy Sensors:
1.
Products:
a.
2.
2.10
A.
B.
2.11
Watt Stopper (The)
Description: Passive-infrared type, 120/277 V, weatherproof, adjustable time
delay up to 15 minutes, 180-degree field of view, and 110-foot (34-m) detection
range. Minimum switch rating: 1000-W incandescent, 500-VA fluorescent.
WALL PLATES
Single and combination types to match corresponding wiring devices.
1.
Plate-Securing Screws: Metal with head color to match plate finish.
2.
Material for Finished Spaces: 0.035-inch- (1-mm-) thick, satin-finished stainless
steel.
3.
Material for Unfinished Spaces: Galvanized steel.
4.
Material for Mechanical Rooms, Electrical Rooms and Kitchen Areas: 0.035-inch(1-mm-) thick, satin-finished stainless steel
5.
Material for Damp Locations: Cast aluminum with spring-loaded lift cover, and
listed and labeled for use in "wet locations."
Wet-Location, Weatherproof Cover Plates: NEMA 250, complying with type 3R
weather-resistant, die-cast aluminum with lockable cover.
FLOOR SERVICE FITTINGS
A.
Type: Modular, flush-type dual-service units suitable for wiring method used.
B.
Compartments: Barrier separates power from voice and data communication cabling.
C.
Service Plate: Rectangular, die-cast aluminum with satin finish.
D.
Power Receptacle:
indicated.
E.
Voice and Data Communication Outlet: Blank cover with bushed cable opening
NEMA WD 6 configuration 5-20R, gray finish, unless otherwise
2.12
MULTIOUTLET ASSEMBLIES
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:
B.
Manufacturers: Subject to compliance with requirements, provide products by one of
the following:
1.
Hubbell Incorporated; Wiring Device-Kellems.
2.
Wiremold Company (The).
3.
Airey-Thompson Co.
C.
Components of Assemblies: Products from a single manufacturer designed for use as
a complete, matching assembly of raceways and receptacles.
D.
Raceway Material: Metal, with manufacturer's standard finish.
E.
Wire: No. 12 AWG.
2.13
A.
FINISHES
Color: Wiring device catalog numbers in Section Text do not designate device color.
1.
Wiring Devices Connected to Normal Power System: Ivory unless otherwise
indicated or required by NFPA 70 or device listing.
2.
Wiring Devices Connected to Emergency Power System: Red
3.
Isolated-Ground Receptacles: As specified above, with orange triangle on face.
PART 3 - EXECUTION
3.1
INSTALLATION
A.
Comply with NECA 1, including the mounting heights listed in that standard, unless
otherwise noted.
B.
Coordination with Other Trades:
1.
Take steps to insure that devices and their boxes are protected. Do not place
wall finish materials over device boxes and do not cut holes for boxes with
routers that are guided by riding against outside of the boxes.
2.
Keep outlet boxes free of plaster, drywall joint compound, mortar, cement,
concrete, dust, paint, and other material that may contaminate the raceway
system, conductors, and cables.
3.
Install device boxes in brick or block walls so that the cover plate does not cross
a joint unless the joint is troweled flush with the face of the wall.
4.
C.
D.
Install wiring devices after all wall preparation, including painting, is complete.
Conductors:
1.
Do not strip insulation from conductors until just before they are spliced or
terminated on devices.
2.
Strip insulation evenly around the conductor using tools designed for the
purpose. Avoid scoring or nicking of solid wire or cutting strands from stranded
wire.
3.
The length of free conductors at outlets for devices shall meet provisions of
NFPA 70, Article 300, without pigtails.
4.
Existing Conductors:
a.
Cut back and pigtail, or replace all damaged conductors.
b.
Straighten conductors that remain and remove corrosion and foreign
matter.
c.
Pigtailing existing conductors is permitted provided the outlet box is large
enough.
Device Installation:
1.
Replace all devices that have been in temporary use during construction or that
show signs that they were installed before building finishing operations were
complete.
2.
Keep each wiring device in its package or otherwise protected until it is time to
connect conductors.
3.
Do not remove surface protection, such as plastic film and smudge covers, until
the last possible moment.
4.
Connect devices to branch circuits using pigtails that are not less than 6 inches
(152 mm) in length.
5.
When there is a choice, use side wiring with binding-head screw terminals. Wrap
solid conductor tightly clockwise, 2/3 to 3/4 of the way around terminal screw.
6.
Use a torque screwdriver when a torque is recommended or required by the
manufacturer.
7.
When conductors larger than No. 12 AWG are installed on 15- or 20-A circuits,
splice No. 12 AWG pigtails for device connections.
8.
Tighten unused terminal screws on the device.
9.
When mounting into metal boxes, remove the fiber or plastic washers used to
hold device mounting screws in yokes, allowing metal-to-metal contact.
E.
Receptacle Orientation:
1.
Install ground pin of vertically mounted receptacles up, and on horizontally
mounted receptacles to the right.
2.
Install hospital-grade receptacles in patient-care areas with the ground pin or
neutral blade at the top.
F.
Device Plates: Do not use oversized or extra-deep plates. Repair wall finishes and
remount outlet boxes when standard device plates do not fit flush or do not cover rough
wall opening.
G.
Dimmers:
1.
Install dimmers within terms of their listing.
2.
Verify that dimmers used for fan speed control are listed for that application.
3.
Install unshared neutral conductors on line and load side of dimmers according to
manufacturers' device listing conditions in the written instructions.
H.
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. Devices of normal and emergency branches are
not to be ganged together, provide separate outlet boxes.
I.
Adjust locations of floor service outlets and service poles to suit arrangement of
partitions and furnishings.
J.
Provide tamper resistant receptacles in pediatric and psychiatric patient care areas and
as indicated on plans.
K.
Plates for safety type and tamper resistant receptacles shall have tamper resistant
screws.
L.
Receptacles in patient care areas shall be hospital grade.
M.
Install receptacles shown on the drawings as “special mounting height” at mounting
height indicated on drawings. Where no mounting height is indicated by drawings and
receptacles are above counters, mount receptacles with centers 4” above top of
counter. If counter has a backsplash, receptacles shall be mounted with centers 4”
above top of backsplash. Where special mounting height receptacles are not shown
above counters and no mounting height is indicated, receptacle mounting height shall
match adjacent light switches or above counter receptacles. Coordinate installation of
all special mounting height receptacles with the architectural drawings and elevations.
3.2
A.
3.3
A.
IDENTIFICATION
Comply with Division 26 Section "Common Work Results."
Perform tests and inspections and prepare test reports.
B.
C.
1.
In healthcare facilities, prepare reports that comply with recommendations in
NFPA 99.
2.
Test Instruments: Use instruments that comply with UL 1436.
3.
Test Instrument for Convenience Receptacles: Digital wiring analyzer with digital
readout or illuminated LED indicators of measurement.
Tests for Receptacles:
1.
Polarity
2.
Ground Impedance: Values of up to 2 ohms are acceptable.
3.
GFCI Trip: Test for tripping values specified in UL 1436 and UL 943.
4.
Using the test plug, verify that the device and its outlet box are securely
mounted.
5.
The tests shall be diagnostic, indicating damaged conductors, high resistance at
the circuit breaker, poor connections, inadequate fault current path, defective
devices, or similar problems. Correct circuit conditions, remove malfunctioning
units and replace with new ones, and retest as specified above.
Test straight blade hospital-grade receptacles for the retention force of the grounding
blade according to NFPA 99. Retention force shall be not less than 4 oz. (115 g).
END OF SECTION
ENCLOSED SWITCHES & CIRCUIT BREAKERS 26-2816-1
SECTION 26-2816
ENCLOSED SWITCHES AND CIRCUIT BREAKERS
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
1.2
SUMMARY
A. This Section includes individually mounted switches and circuit breakers used for the
following:
1.
2.
3.
4.
Service disconnect switches
Feeder and equipment disconnect switches
Feeder and branch-circuit protection
Motor disconnect switches
B. Related Sections: The following Sections contain requirements that relate to this
Section:
1.
1.3
Division 26 Section “Wiring Devices” for attachment plug and receptacles, and
snap switches used for disconnect switches.
SUBMITTALS
A. General: Submit each item in this Article according to the Conditions of the Contract and
Division 1 Specification Sections.
B. Product Data for switches, circuit breakers, and accessories specified in this Section.
Include the following:
1.
2.
3.
Descriptive data and time-current curves
Let-through current-curves for circuit breakers with current-limiting characteristics
Coordination charts and tables and related data
C. Wiring diagrams detailing wiring for power and control systems and differentiating
between manufacturerinstalled and field-installed wiring.
D. Maintenance data for tripping devices to include in the operation and maintenance
manual specified in Division 1.
1.4
COORDINATION
A. Coordinate layout and installation of switches, circuit breakers and components with
equipment served and adjacent services. Maintain required workspace clearances and
required clearances for equipment access doors and panels.
PART 2 – PRODUCTS
2.1
MANUFACTURERS
A. Manufacturer: Subject compliance with requirements, provide products by one of the
1.
2.
3.
4.
2.2
Eaton Electrical/Cutler-Hammer
General Electric
Seimens
Square D
DISCONNECT SWITCHES
A. Enclosed, Non-fusible Switch: NEMA KS 1, Type HD, with lockable handle.
B. Enclosed, Fusible Switch, 800 A and Smaller: NEMA KS1, Type HD, clips to
accommodate specified fuses, enclosure consistent with environment where located,
handle lockable with 2 padlocks, and interlocked with cover in CLOSED position.
C. Enclosure: MENA KS1, Type 1, unless otherwise specified or required to meet
environmental conditions of installed location.
1.
2.
3.
4.
2.3
Outdoor Locations: Type 3R
Kitchen Areas: Type 4X, stainless steel
Other Wet or Damp Indoor Locations: Type 4
Hazardous Areas Indicated on Drawings: Type 7C
ENCLOSED CIRCUIT BREAKERS
A. Enclosed, Molded-Case Circuit Breaker: NEMA AB 1, with lockable handle.
B. Characteristics: Frame size, trip rating, number of poles, and auxiliary devices as
indicated and interrupting rating to meet available fault current.
C. Application Listing: Appropriate for application, including switching florescent lighting
loads or heating, air-conditioning, and refrigerating equipment.
D. Circuit Breakers, 200 A and Larger: Trip units interchangeable within frame size.
E. Circuit Breakers, 400 A and Larger: Field-adjustable, short-time and continuous-current
settings.
F. Current-limiting Trips: Where indicated, let through for ratings less than NEMA AB 1,
Class RK-5.
G. Current Limiters: Where indicated, integral fuse listed for circuit breaker.
H. Molded-Case Switch: Where indicated, molded-case circuit breaker without trip units.
I. Lugs: Mechanical lugs and power-distribution connectors for number, size, and material
of conductors indicated.
J. Shunt Trip: Provide for elevator feeders, kitchen equipment under range hood, and
where indicated.
K. Accessories: As indicated.
L. Enclosure: NEMA AB 1, Type 1, unless otherwise specified or required to meet the
environmental conditions of installed location.
1.
2.
3.
4.
Outdoor Locations: Type 3R
Kitchens Areas: Type 4X, Stainless steel
Other Wet or Damp Indoor Locations: Type 4
Hazardous Areas indicated on Drawings: Type 7C
M. Circuit breakers installed outdoors or inside spaces without HVAC temperature control
shall be electronic trip type.
N. Circuit breaker types shall be selected to provide selective coordination above 0.1
seconds as determined be the electrical systems protective device study. Provide
electronic trip breakers with adjustable settings as required for this selective
coordination.
O. Circuit breaker shall have interrupting ratings as on the drawings and/or panelboard/
switchboard schedules providing service to the breaker.
1.
208Y/120-volts:
Frame Size
100 Amp
200 Amp
400Amp
800 Amp
2.
480Y/277-volts
Frame Size
100 Amp
200 Amp
400Amp
800 Amp
PART 3- EXECUTION
3.1
Minimum Symmetrical AIC at
240- volts
18000 Amps
25000 Amps
42000 Amps
42000 Amps
INSTALLATION
Minimum Symmetrical AIC at
480- volts
14000 Amps
25000 Amps
30000 Amps
30000 Amps
A. Install disconnect switches and circuit breakers in locations as indicated, according to
Manufacturer’s written instructions.
B. Install disconnect switches and circuit breakers level plumb.
C. Install wiring between disconnect switches, circuit breakers, control, and indications
devices.
D. Connect disconnect switches and circuit breakers and components to wiring system and
to ground as indicated and instructed by manufacturer.
1.
Tighten electrical connectors and terminals according to manufacturer’s
published torque- tightening values. Where manufacturer’s torque values are not
indicated, use those specified in UL 486B.
E. Identify each disconnect switch and circuit breaker according to requirements specified
in Division 26 Section “Common Work Results.”
F. Each disconnect downstream from a variable frequency drive shall have a control
interlock for the VFD.
3.2
ADJUSTING
A. Set field-adjustment disconnect switches and circuit-breaker trip ranges as indicated.
3.3
CLEANING
A. After completing system installation, including outlet and devices, inspect exposed finish.
Remove burrs, dirt, and construction debris and repair damaged finishes including chips,
scratches, and abrasions.
END OF SECTION
MOTOR CONTROLLERS 26-2923-1
SECTION 26-2923
MOTOR CONTROLLERS
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
Conditions and Division 1 Specification Section, apply to this Section.
1.2
SUMMARY
A. This Section includes ac motor-control devices rate 600 V and less that are supplied as
enclosed units.
B. Related Section includes the following:
1.
Division 26 Section “Common Work Results” for general materials, labeling
materials and installation methods.
C. Furnish and install independently mounted or motor control center mounted across-theline motor controllers in coordination with the mechanical and plumbing drawings and as
required by Division 21/22/23. Controllers provide as part of custom equipment control
panels; multispeed controllers; variable frequency; part-winding; wye-delta, and other
reduced-voltage controllers; and solid-state variable controllers shall be furnished under
Division 21/22/23 and Install under this Division (except where the controller or panel is
mounted on the mechanical equipment).
1.3
SUBMITTALS
A. Product Data: For products specified in this Section, include dimensions, ratings and
data on features and components.
B. Field Test Reports: Indicate and interpret test results for compliance with performance
requirements.
C. Maintenance Data: For products to include in the maintenance manuals specified in
Division 1.
D. Load-Current and Overload-Relay Heater List: Compile after motors have been installed
and arrange to demonstrate that selection of heaters suits actual motor nameplate fullload currents.
E. Qualifications Data for Field Testing Agency: Certificates, signed by Contractor, certified
that agency compiles with requirements specified in “Quality Assurance” Article below.
1.4
QUALITY ASSURANCE
A. Manufacturer Qualifications: Maintain, within 100 miles (160km) of Project site, a service
center capable of providing training, parts, and emergency maintenance and repairs.
B. Field Testing Agency Qualifications: An independent testing agency with experience and
capability to satisfactorily conduct testing indicated without delaying the Work.
Evaluation criteria shall be according to ASTME E 699.
C. Source Limitations: Obtain similar motor-control devices through one source from a
single manufacturer.
D. Comply with NEPA 70.
E. Listing and Labeling: Provide motor controllers specified in this Section that are listed
and labeled.
F. The Team “Listed” and “Labeled”: As defined in the National Electrical Code, Article
100.
G. Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing
1.5
COORDINATION
A. Coordinate features of controllers and accessory devices with pilot devices and control
circuits to which they connect.
B. Coordinate features, accessories, and function of each motor controller with the ratings
and characteristics of the supply circuit, the motor, the required control sequence, and
the duty cycle of the motor and load.
C. Provide accessories in accordance with the Division 15 drawings, schedules, and
specifications.
PART 2- PRODUCTS
2.1
MANUFACTURERS
A. Manufacturers: Subject to compliance with requirements, provide products by one of the
1.
2.
3.
4.
5.
6.
7.
2.2
ABB Power Distribution, Inc.; ABB Control, Inc. Subsidiary
Allen-Bradley Co.; Industrial Control Group
Eaton Corp.; Westinghouse & Cutler-Hammer Products
Furnas Electric Co.
General Electric Co.; Electrical Distribution & Control Div.
Siemens Energy & Automation, Inc.
Square D Co.
MANUAL MOTOR CONTROLLERS
A. Description: NEMA ICS 2, general purpose, Class A with toggle action and element.
2.3
MAGNETIC MOTOR CONTROLERS
A. Description: NEMA ICS 2, Class A, full voltage, non-reversing, across the line, unless
otherwise indicated. Solid-state controllers shall be provided in lieu of magnetic
controllers only where specifically shown on the drawings.
B. Control Circuit: 120V; obtain from integral fuse control power transformer, unless
otherwise indicated. Include a control power transformer with adequate capacity to
operate connected pilot, indicated and control devices, plug 100 percent spare capacity.
C. Combination Controller: Factory-assembles combination controller and disconnect
switch with or without overcurrent protection as indicated.
1.
2.
3.
Circuit-Breaker Disconnect: NEMA AB 1, motor-circuit protector with fieldadjustable short- circuit trip coordinated with motor locked-rotor amperes.
Overload Relay: Ambient-compensated type with inverse-time-current
characteristics. Provide with heaters or sensors in each phase matched to
nameplate full-load current of specific motor to which they connect, and with
appropriate adjustment for duty cycle.
Multispeed-Motor Controller: Match controller to motor type, application, and
number of speeds; include the following accessories:
a.
b.
c.
4.
5.
2.4
Compelling relay ensures motor will start only at low speed.
Accelerating relay ensures properly timed acceleration through speeds
lower than that selected.
Decelerating relay ensures automatically timed deceleration through each
speed.
Wye-Delta Controller: NEMA ICS 2, closed transition with adjustable time delay.
Autotransformer Reduced-voltage Controller: NEMA ICS 2, closed transition.
ENCLOSERS
A. Description: Flush or surface-mounted cabinets as indicated. NEMA 250, Type 1,
unless otherwise indicated to meet environmental conditions at installed location.
1.
2.
3.
4.
2.5
Outdoor Locations: NEMA 250, Type 3R
Kitchen Areas: NEMA 250, Type 4X, stainless steel
Other Wet or Damp Indoor Locations: NEMA 250, Type 4
Hazardous Areas Indicated on Drawings: NEMA 250, Type 7C
ACCESSORIES
A. Devices are factory installed in controller enclosure, unless otherwise indicated.
B. Push-Button Stations, Pilot Lights, and Selector Switches: NEMA ICS 2, heavy-duty
type.
C. Stop and Lockout Push-Button Station: Momentary-break push-button station with a
factory-applied hasp arranged so padlock can be used to lock push button in depressed
position with control circuit open.
D. Control Relays: Auxiliary and adjustable time-delays.
E. Factory mounted with Nationally Recognized Testing Laboratory listed and labeled
mounted device.
F. Two (2) N.O. and two (2) N.C. auxiliary contacts.
PART 3- EXECUTION
3.1
APPLICATIONS
A. Select features of each motor controller to coordinate with ratings and characteristics of
supply circuit and motor; required control sequence; duty cycle of motor, drive, and load;
and configuration of pilot device and control circuit affecting controller functions.
B. Select horsepower rating of controllers to suit motor controlled.
C. Use fractional-horsepower manual controllers for single-phase motors, unless otherwise
indicated.
D. Push-Button Stations: In covers of magnetic controllers for manually started motors
where indicated, start contact connected in parallel with sealing auxiliary contact for lowvoltage protection.
E. Hand-Off-Automatic Selector Switches: In covers of manual and magnetic controllers of
motors started and stopped by automatic controls or interlock with other equipment.
3.2
INSTALLATION
A. Furnish and install independently mounted across-the-line and reduce voltage (wyedelta and autotransformer) motor-control devices motor-control devices in according
with the mechanical and as required by Division 21/22/23. Controllers provided as part of
custom equipment control panels, variable frequency controllers, and part winding
controllers shall be furnished under Division 21/22/23 and installed under this Division
(expect where the controllers or control panel is mounted on the mechanical equipment).
Independently mounted motor controllers shall include individually wall-mounted and
MCC- mounted units.
B. Reduced voltage starts shall be in accordance with the mechanical and plumping
drawings. In general, chillers compressors and pumps shall be wye-delta closed
transition starters. Starters for high torque loads (such as fans) shall be 50%, 65%, 80%,
tap auto-transformer type.
C. Motors 60 HP and larger and larger and motors as designed on the mechanical and
plumbing drawings shall have reduced voltage starters. Size shall be as specified on the
drawings or as submitted under Division 21/22/23. Motors larger than 20 HP that are not
served by VFD’s shall have power factor capacitors connected to the controller between
the main contacts and the overloads heaters.
D. Location: Locate controllers within sight of motors controlled, unless otherwise indicated.
E. For control equipment at walls, bolt units to wall or mount on lightweight structural-steel
channels bolted to wall. For controllers not at walls, provide freestanding racks
conforming to Division 26 Section “Common Work Results.”
F. Install freestanding equipment on concrete housekeeping bases conforming to Section
“Cast- in-Place Concrete.”
G. Motor-Controller Fuse: Install indicate fuse in each fusible switch.
3.3
IDENTIFICATION
A. Identify motor-control components and control wiring according to Division 26 Section
“Common Work Results.”
3.4
CONTROL WIRING INSTALLATION
A. Wiring between motor control devices shall comply with specifications Sections 26 0500,
26 0519, 26 0523, and 26 0533.
B. Bundle, train, and support wiring in enclosures.
C. Connect hand-off automatic switch and other automatic control devises where available.
1.
3.5
Connect selector switches to bypass only the manual and automatic control
devices that have no safety-type control devices such as low- and high-pressure
cutouts, high-temperature cutouts, and motor overload protectors.
CONNECTIONS
A. Tighten connectors, terminals, bus joints, and mountings. Tighten field-connected
connectors and terminals, including screws and bolts, according to manufacture’s
published torque-tightening values. Where manufacturer’s torque values are not
indicated, use those specified in UL 486A and UL 486B.
3.6
A. Testing: After installing motor controllers and after electrical circuitry has been
energized, demonstrate product capability and compliance with requirements.
B. Procedures: Perform each visual and mechanical inspection and electrical test stated in
NETA.
C. Remove and replace malfunctioning units with new units, and retest.
3.7
CLEANING
A. Remove paint splatters and other spots, dirt, and debris. Touch up scratches and mars
of finish to match original finish. Clean devices internally, using methods and methods
and materials recommended by manufacturer.
END OF SECTION
INTERIOR LIGHTING 26-5100-1
SECTION 26-5100
INTERIOR LIGHTING
PART 1 – GENERAL
1.1
RELATED DOCUMENTS
Conditions and Division 1 Specifications Sections, apply to this Section.
1.2
SUMMARY
A. This Section includes interior lighting fixtures, lighting fixtures mounted on exterior
building surfaces, lamps, ballasts, emergency lighting units, and accessories.
1.3
SUBMITTALS
A. Product Data: For each type of lighting fixtures indicated, arranged in order of fixture
designation. Include data on features, accessories, and the following:
1.
2.
3.
4.
5.
6.
Dimensions of fixtures.
Certified results of independent laboratory tests for fixtures and lamps for
electrical ratings and photometric data.
Certified results of laboratory tests for fixtures and lamps for photometric
performance.
Emergency lighting unit battery and charger.
Florescent and high-intensity-discharge ballasts.
Type of lamps.
B. Shop Drawings: Show details of nonstandard of custom fixtures. Indicate dimensions,
weights, method of field assembly, components, features, accessories.
1.
Wiring Diagram: Detail wiring for fixtures and differentiate between manufacturerinstalled and field-installed wiring.
C. Coordinating Drawings: Reflected ceiling plans and sections drawn to scale and
coordinating fixture installation with ceiling grid, ceiling-mounted items, and other
components in the vicinity. Include work of all trades that if to be installed near
equipment.
D. Field Test Reports: Indicate and interpret test results for compliance with performance
requirements.
E. Maintenance Data: For lighting fixtures to include in maintenance manuals specified in
Division 1.
1.4
QUALITY ASSURANCE
A. Fixtures, Emergency Lighting Units, and Accessories: Listed and labeled as defined in
NFPA 70, Article 100, by testing agency acceptance to authorities having jurisdiction.
C. NFPA 101 Compliance: Comply with visibility and luminance requirements for exit signs.
1.5
COORDINATION
A. Fixtures, Mounting Hardware, and Trim: Coordinate layout and installation of lighting
features with ceiling system and other construction. Review the architect’s ceiling plans
and/or ceilings schedules and make adjustments as required before ordering light
fixtures.
PART 2 – PRODUCTS
2.1
MANUFACTURERS
A. Products: Subject to compliance with requirements, provide one of the products
indicated for each designation in the Lighting Fixture Schedule(s) on the drawings.
B. Manufacturers and materials were selected on a basis of performance and aesthetics. If
any substitution is considered, the piece of equipment in question must be determined
by the Engineer to be equivalent to the specified item.
C. Lamps shall be General Electric, Sylvania or Philips, unless specifically noted on the
drawings.
D. Ballasts shall be General Electric, Sylvania or Philips, unless specifically noted on the
drawings.
E. Lamps and ballasts shall be provided by the same manufacturer.
2.2
FIXTURES AND FIXTURE COMPONENTS, GENERAL
A. Metal Parts: Free from burrs, sharp corners, and edges.
B. Sheet Metal Components: Steel, unless otherwise indicated. Form and support to
prevent warping and sagging.
C. Doors, Frames, and Other Internal Access: Smooth operating, free from light leakage
under operating conditions, and arranged to permit relamping without use of tools.
Arrange doors, frames, lenses, diffusers and other pieces to prevent accidental falling
during relamping did and when secured in operating position.
D. Reflecting Surfaces: Minimum reflectance as follows, unless otherwise indicated:
1.
2.
3.
4.
White Surfaces: 85 percent
Specular Surfaces: 83 percent
Defusing Specular Surfaces: 75 percent
Laminated Silver Metallized Film: 90 percent
E. Lenses, Diffusers, Covers, and Globes: 100% percent virgin acrylic plastic or annealed
crystal glass unless otherwise indicated.
2.3
1.
Plastic: Higher resistance to yellowing and other changes due to aging, exposure
to heat and ultraviolet radiation.
2.
Lens Thickness: 0.125 inch (3 mm) minimum, unless greater thickness is
indicated.
FLUORESCENT LAMP BALLASTS
A. General Requirements: Unless otherwise indicated, features include the following:
1.
2.
3.
Designed for type and quantity of lamps indicated at full light output.
Total Harmonic Distortion Rating: Less than 10 percent.
Sound Rating: A
B. Electronic Ballasts for Liner Lamps: Unless otherwise indicated, features include the
following, besides those in “General Requirements” Paragraph above:
1.
2.
3.
4.
Certified Ballast Manufacturer Certification: Indicated by label.
Power Factor: 95 percent, minimum.
Encapsulation: Without voids in potting compound.
Parallel Lamp Circuits: Multiply lamp ballasts connected to minimum full light
output on surviving lamps if one or more lamps fail.
C. Ballasts for Compact Lamps in Recessed Fixtures: Unless otherwise indicated,
additional features include the following:
1.
2.
3.
4.
5.
6.
Type: Electronic or electromagnetic, fully encapsulated in potting compound.
Power factor: 95 percent, minimum.
Operating Frequency: 20 kHz or higher.
Flicker: Less than 5 percent.
Lamp current Crest Factor: Less than 1.7.
Transient protection: Comply with 47 CFR, Chapter 1, Part 18, Subpart C for
limitations on electromagnetic and radio-frequency interference for nonconsumer equipment.
D. Ballasts for Compact Lamps in Non-recessed Fixtures: Unless otherwise indicated,
additional features include the following:
1.
2.
3.
4.
Power Factor: 95 percent, minimum.
Ballast Coil Temperature: 65 deg C, maximum.
Transient Protection: Comply with IEE C62.41 for Category A1 locations.
Interference: Comply with 47CFR, Chapter 1, Part 18, Subpart C for limitations
on electromagnetic and radio-frequency interference for non-consumer
equipment.
E. Ballasts for Dimmer-Controlled Fixtures: Comply with general and fixture-related
requirements above for electronic ballasts.
1.
2.
Dimming Range: 100 to 10 percent of rated lamp lumens.
Ballast Input Watts: Can be reduced to 20 percent of normal.
3.
4.
Compatibility: Certified by manufacturer for use with specific dimming system
and/or control devices indicated for use with each dimming ballast.
Control: Coordinate wiring from ballast to control device to ensure that ballast,
controller and connecting wiring are compatible.
F. Ballasts for Low-Temperature Environments: As follows:
1.
2.
Temperatures 0 Deg F (Minus 17 Deg C) and Above: Electrometric type rated for
0 deg F (minus 17 deg C) starting temperature.
Temperatures Minus 20 Deg F (Minus 29 Deg C) and Above: Electromagnetic
type designed for use with high-output lamps.
G. Luminaires controlled by occupancy sensors shall have programmed start ballasts.
2.5
EXIT SIGNS
A. General Requirements: Comply with UL 924 and the following:
1.
Sign Colors and Lettering Size: Comply with authorities having jurisdiction.
B. Internally Lighted Signs: As follows:
1.
2.6
Lamps for AC Operation: Light-emitting Diodes, 70,000 hours minimum rated
lamp life.
EMERGENCY LIGHTING UNITS
A. General Requirements: Self-contained units. Comply with UL 924. Units include the
following features:
1.
2.
3.
4.
5.
2.7
Battery: Sealed, maintenance-free, lead-acid type with minimum 10-year nominal
life and special warranty.
Charger: Fully automatic, solid-state type with sealed transfer relay.
Operation: Relay automatically turns lamp on when supply circuit voltage drops
to 80 percent of nominal voltage or below. Lamp automatically disconnects from
battery when voltage approaches deep-discharge level. When normal voltage is
restored, relay disconnects lamps, and battery is automatically recharged and
floated on charger.
Wire Guard: Where indicated, heavy-chrome-plated wire arranged to protect
lamp heads or fixtures.
Integral Time-Delay Relay: Arranged to hold unit on for fixed interval restoring
power after an outage. Provides adequate time delay to permit high-intensitydischarge lamps to restrike and develop adequate output.
EMERGENCY FLUORESCENT POWER SUPPLY UNIT
A. Internal Type: Self-contained, modular, battery-inverter unit factory mounted within
fixture body. Comply with 924.
1.
Test Switch and Light-Emitting Diode Indicator Light: Visible and accessible
without opening fixture or entering ceiling space.
2.
3.
4.
2.8
Battery: Sealed, maintenance-free, nickel-cadmium type with minimum 10-yr
nominal life.
Charger: Fully automatic, solid-state, constant-current type.
Operation: Relay automatically energizes lamp from unit when normal supply
circuit voltage drops to 80 percent of nominal voltage or blow. When normal
voltage is restored, relay disconnects lamp, and battery is automatically
recharged and floated on charger.
LAMPS
A. Fluorescent Color Temperature and Minimum Color-Rendering Index: 4100 K and 85
CRI, unless otherwise indicated.
B. Non-compact Florescent Lamp Life: Rated average is 20,000 hours at 3 hours per start
when used on rapid-start circuits.
C. Metal-Halide Color Temperature and Minimum Color-Rendering Index: 3600 K and 70
CRI, unless otherwise indicated.
D. Two pin 9 watt twin tube fluorescent lamps with two pins will not be accepted. Provide 9
and 13 watt double twin tube with four pins and E-O-L feature to prevent end of life
overheating.
2.9
FIXTURE SUPPORT COMPONENTS
A. Comply with Division 26 Section “Basic Electrical Materials and Methods,” for channeland angle-iron supports.
B. Single-Stem Hangers: 1/2-inch (12-mm) steel tubing with swivel ball fitting and ceiling
canopy. Finish same as fixture.
C. Twin-Stem Hangers: Two, 1/2-inch (12-mm) steel tubes with single canopy arranged to
mount a single fixture. Finish same as fixture.
D. Rod Hangers: 3/16-inch-(5-mm-) minimum diameter, cadmium-plated, treaded steel rod.
E. Hook Hangers: Integrated assembly matched to fixture and line voltage and equipped
with treaded attachment, cord, and locking-type plug.
F. Aircraft Cable Support: Use cable, anchorages, and intermediate supports
recommended by fixture manufacturer.
2.10
FINISHES
A. Fixtures: Manufacturer’s standard, unless otherwise indicated.
1.
2.
Paint Finish: Applied over corrosion-resistance treatment or primer, free of
defects.
Metallic Finish: Corrosion resistant.
PART 3- EXECUTION
3.1
INSTALLATION
A. Fixtures: Set level, plumb, and square with ceiling and walls, and secure according to
manufacturer’s written instructions and approved submittal materials. Install lamps in
each fixture.
B. Support for Fixtures in or on Grid-Type Suspended Ceilings: Use grid for support.
1.
2.
3.
Support Clips: Fasten to fixtures and to ceiling grid members at or near each
fixture corner.
Fixtures of Size Less Than Ceiling Grid: Arrange as indicated on reflected on
reflected ceiling plans or center in acoustical panel, and support fixtures
independently with at least two 3/4-inch (20-mm) metal channels spanning and
secured to ceiling tees.
Install a minimum of four ceiling support system rods or wires for each fixture.
Locate not more than 6 inches (150 mm) from fixture cornets.
C. Suspended Fixture Support: As follows:
1.
2.
3.
4.
Pendants and Rods: Where longer than 48 inches (1200 mm), brace to limit
swinging.
Stem-Mounted, Single-Unit Fixtures: Suspend with twin-stem hangers.
Continuous Rows: Use tubing or stem for wiring at one point and tubing or rod for
suspension for each unit length of fixtures chassis, including one at each end.
Continuous Rows: Suspend from cable installed according to fixture
manufacturer’s written instructions and details on drawings.
D. Provide fixtures as scheduled on the electrical drawings. Determine type of ceiling to be
installed in each space form architectural drawings and schedules and provide fixtures
suitable for the exact ceiling type.
E. Connection to lay-in fixtures, above acoustical and drywall ceilings, shall be made with
6-foot length of flexible conduit.
F. Provide fixtures with multiple ballasts for independent switching control of inboard and
outboard lamps where dual level switching is indicated on the drawings.
3.2
FIELD CONTROL
A. Inspect each installed fixture for damage. Replace damage fixtures and components.
B. Provide instruments, as many as required, to make and record test results.
C. Tests: As follows:
1.
2.
3.
4.
Verify normal operation of each fixture after installation.
Emergency Lighting: Interrupt electrical supply to demonstrate proper operation.
Verify normal transfer to battery source and retransfer to normal.
Report results in wiring.
D. Malfunctioning Fixtures and Components: Replace or repair, then retest. Repeat
procedure until units operate properly.
E. Corrosive Fixtures: Replace during warranty period.
3.3
CLEANING AND ADJUSTING
A. Clean fixtures internally and externally after installation. Use methods and materials
recommended by manufacturer.
B. Adjust amiable fixtures to provide required light intensities.
END OF SECTION

SECTION 26-0500 COMMON WORK RESULTS FOR ELECTRICAL

Transcription

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