SECTION 26 27 26
WIRING DEVICES
PART 1 - GENERAL
1.01
SUMMARY
A.
Section Includes:
1.
2.
3.
4.
1.02
RELATED DOCUMENTS
A.
1.03
1.04
Convenience receptacles
Wiring connectors
Wall toggle switches
Device wall finish plates
Drawings and general provisions of the Contract, including General and
Supplementary Conditions and Division 1 Specifications, apply to this section.
REFERENCES
A.
IEC 309-1, Part 1: General Requirements: Plugs, Socket-Outlets and Couplers for
Industrial Purposes.
B.
NEMA WD 1-83: General Requirements for Wiring Devices.
C.
NEMA WD 6-88: Wiring Device – Dimensional Requirements.
D.
UL 486A-91:
Conductors.
E.
UL 486B-91: Wire Connectors for Use with Aluminum Conductors.
F.
UL 20: General-Use Snap Switches.
G.
UL 498: Electrical Attachment Plugs and Receptacles.
H.
UL 943: Ground-Fault Circuit Interrupters.
I.
UL 1449: Transient Voltage Surge Suppressors.
Wire Connectors and Soldering Lugs for Use with Copper
DEFINITIONS
A.
GFCI: Ground-Fault Circuit Interrupter
B.
TVSS: Transient Voltage Surge Suppressor
26 27 26 - 1
WIRING DEVICES
USAF Academy
Project No. XQPZ 10-0105C
1.05
SUBMITTALS
A.
Product Data: For each product specified.
B.
Samples:
1.
2.
1.06
QUALITY ASSURANCE
A.
Qualifications:
1.
2.
3.
1.07
1.08
Provide products specified in this Section that are “listed and labeled”(as
defined by the National Electrical Code, Article 100).
Comply with NEMA WD 1.
Comply with NFPA 70.
COORDINATION
A.
Receptacles for Government-Furnished Equipment: Match plug configurations.
B.
Cord and Plug Sets: Match equipment requirements.
DELIVERY, STORAGE, AND HANDLING
A.
1.09
Submit physical device and device finish plate product samples to illustrate
materials, equipment or workmanship, for color selection coordination and
compliance with technical specifications.
After review, samples may be used in conjunction with the Work.
Packing, Shipping, Handling, and Unloading: Deliver all materials to the Work site
in original, new, and unopened containers bearing the manufacturer’s name and
label.
EXTRA MATERIALS
A.
Furnish extra quantities of installed devices as described below that are packaged
with protective coverings for storage and identified with labels describing contents.
Deliver extra materials to the Contracting Officer’s Technical Representative.
1.
2.
3.
4.
Telephone/Power Service Poles: Supply one for each 10 installed, but not
less than one extra.
Floor Service-Outlet Assemblies: Supply one for each 10 installed, but not
less than one extra.
Poke-Through, Fire-Rated Closure Plugs: Supply one for each five floor
service outlets installed, but not less than two.
TVSS Receptacles: Supply one for each eight installed, but not less than
two.
26 27 26 - 2
WIRING DEVICES
USAF Academy
Project No. XQPZ 10-0105C
PART 2 - PRODUCTS
2.01
ACCEPTABLE MANUFACTURERS
A.
Items of material furnished for the Work, subject to compliance with requirements,
items listed or equal approved from manufacturers offering products that may be
incorporated into the Work include, but are not limited to, the following:
1.
Wiring Devices:
a.
b.
c.
d.
e.
f.
g.
h.
2.
Wiring Devices for Hazardous (Classified) Locations:
a.
b.
c.
3.
American Electric
Hubbell, Inc.; Wiring Devices Div.
Pass & Seymour/Legrand; Wiring Devices Div.
Square D Co.
Wiremold
Walker
Dimming Switches:
a.
b.
c.
2.02
Airey-Thompson Co.
Wiremold
Hubbell, Inc.
Poke-through, Floor Service Outlets and Telephone/Power Poles:
a.
b.
c.
d.
e.
f.
5.
Crouse-Hinds Electrical Co.; Distribution Equipment Div.
Killark Electric Manufacturing Co.
Pyle-National, Inc.; an Amphenol Co.
Multioutlet Assemblies:
a.
b.
c.
4.
Bryant Electric, Inc.
Eagle Electric Manufacturing Co., Inc.
GE Company; GE Wiring Devices
Hubbell, Inc.; Wiring Devices Div.
Killark Electric Manufacturing Co.
Leviton Lighting Control Division
Pass & Seymour/Legrand; Wiring Devices Div.
Pyle-National, Inc.; an Amphenol Co.
Leviton Lighting Control Division
Lithonia Lighting Controls
Lutron Electronics Company, Inc.
COMPONENTS
A.
Wiring Devices for Hazardous (Classified) Locations: Comply with NEMA FB11
and UL 1010.
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WIRING DEVICES
USAF Academy
Project No. XQPZ 10-0105C
B.
Straight-Blade and Locking Receptacles: Heavy-Duty grade: Comply with NEMA
WD 1, NEMA WD 6, and UL 498.
C.
Convenience Receptacles:
unless otherwise noted.
D.
Straight-Blade Receptacles: Hospital grade: Comply with NEMA WD 6.
E.
GFCI Receptacles: Feed-through type, configuration 5-20R duplex receptacle for
installation in a 2-3/4-inch-deep outlet box without an adapter. Comply with NEMA
WD 1, NEMA WD 6, UL 498, and UL 943, Class A.
F.
Tamper-Resistant Convenience Receptacles: Labeled to comply with NFPA 70,
“Health Care Facilities” article, “Pediatric Locations” section.
G.
Isolated-Ground Receptacles: Equipment grounding contacts connected only to
the green grounding screw terminal of the device with inherent electrical isolation
from mounting strap. Listed and labeled devices as isolated-ground receptacles.
Integral to receptacle construction isolation method must not be dependent on
removable parts.
H.
TVSS Receptacles: Comply with UL 1449. Duplex type, NEMA WD 6,
Configuration 5-20R, with integral TVSS in line to ground, line to neutral, and
neutral to ground. Multiple metal-oxide varistors; rated with a nominal clamp level
of 400 transient-suppression voltage and minimum single transient pulse energy
dissipation of 240 Joules, according to IEEE C62.41.2 and IEEE C62.45. Active
TVSS indication light visible in face of device to indicate device as "active" or "no
longer active." Distinctive marking on face of device denotes TVSS-type unit.
I.
Industrial Heavy-Duty Receptacle: Comply with IEC 309-1.
J.
Pendant Cord/Connector Devices: Matching, locking type, plug and receptacle
body connector, NEMA WD 6, Configurations L5-20P and L5-20R, Heavy-Duty
grade. Nylon body with screw-open cable-gripping jaws and provision for attaching
external cable grip. External cable grip woven wire-mesh type made of highstrength galvanized-steel wire strand, matched to cable diameter, and with
attachment provision designed for corresponding connector.
K.
Cord and Plug Sets: Match voltage and current ratings and number of conductors
to requirements of equipment being connected. Rubber-insulated cord, strandedcopper conductors, with type SOW-A jacket.
Green-insulated grounding
conductor, and equipment-rating ampacity plus a minimum of 30 percent. Nylon
plug body and integral cable-clamping jaws. Match cord and receptacle type for
connection.
L.
Snap Switches: Heavy-duty, quiet type. Switch shall be rated at 20 A, 120/277VAC.
M.
Key-Operated Switches: 20A, 120/277 VAC with factory-supplied key in lieu of
switch handle.
All devices shall be duplex, configuration 5-20R,
26 27 26 - 4
WIRING DEVICES
USAF Academy
Project No. XQPZ 10-0105C
N.
Combination Switch and Receptacle: Both devices in a single gang unit with
plaster ears and removable tab connector that permit separate or common feed
connection. Switch shall be rated at 20 A, 120/277-VAC. Duplex receptacle shall
conform to NEMA WD 6, Configuration 5-15R.
O.
Wall Box Dimmers:
1.
2.
3.
4.
Dimmer Switches: Modular, full-wave, solid-state units with integral, quiet
on/off switches and audible and electromagnetic noise filters.
Control: Continuously adjustable slide control. Single-pole or three-way
switch to suit connections.
Modular Incandescent Lamp Dimmers: 120 V, 60 Hz, single pole with soft
tap or other quiet switch; electromagnetic filter to eliminate noise, RF, and TV
interference; and 5-inch wire connecting leads.
Modular Fluorescent Lamp Dimmers: Compatible with dimming ballasts; trim
potentiometer to adjust low-end dimming; dimmer-ballast combination
capable of consistent dimming to a maximum of 1% of full brightness.
P.
Floor Service Fittings: Types: Modular, flush-type, dual-service units suitable for
wiring method used. Compartmentilized barrier to separate power and signal
compartments. Die-cast aluminum housing material, satin finished. Duplex
receptacle NEMA WD 6, Configuration 5-20R, gray finish, unless otherwise
indicated. Provide signal outlet with blank cover and bushed cable opening, unless
otherwise indicated.
Q.
Poke-through Assemblies: Factory-fabricated and factory-wired assembly of
below-floor junction box unit with multi-channeled, through-floor raceway/firestop
unit and detachable matching floor service-outlet assembly. Selected size to fit
nominal 3-inch cored holes in floor and matched to floor thickness. Unit shall be
listed and labeled for fire rating of floor-ceiling assembly. Closure plug(s) Arranged
to close unused 3-inch cored openings and reestablish fire rating of floor. Factory
wiring shall include three No. 12 AWG power and ground conductors; one 75-ohm
coaxial telephone/data cable; and one four-pair, 75-ohm telephone/data cable.
R.
Telephone/Power Service Poles:
1.
Factory-assembled and -wired units to extend power, telephone, and data
service from distribution wiring concealed in ceiling to devices or outlets in
pole near floor. Poles shall be nominal 2.5-inch-square cross section with
height adequate to extend from floor to at least 6 inches above ceiling, and
separate channels for power and signal wiring. Ceiling trim flange with
concealed bracing arranged for positive connection to ceiling supports, and
pole foot with carpet pad attachment. Factory wiring sized for three No. 12
AWG power and ground conductors; one 75-ohm coaxial telephone/data
cable; and one four-pair, 75-ohm telephone/data cable. Provide service pole
with two single receptacles; 20A; heavy-duty; NEMA WD 6, configuration 520R units. Signal Outlets shall be blank insert with bushed cable opening.
Unless otherwise indicated, provide manufacturers standard finish and trim
combinations, including painted, orsatin anodized-aluminum finish and woodgrain-type trim. Where required by the Contracting Officer’s Technical
Representative, coordinate specific telephone/power pole finish and trim to
26 27 26 - 5
WIRING DEVICES
USAF Academy
Project No. XQPZ 10-0105C
2.
S.
Multioutlet Assemblies: Products from a single manufacturer designed as a
complete, matching assembly of raceway, and receptacles. Raceway shall be
constructed of sheet metal with the finish selected by the Contracting Officer’s
Technical Representative.
T.
Wall Plates: Provide device plates for each switch, receptacle, signal and
telephone outlet, and special purpose outlet. Do not use sectional gang plates.
Provide multi-gang outlet plates for multi-gang boxes. Single and combination
types match corresponding wiring devices. Provide blank plates on unused outlet
boxes. Metal plate-securing screw with head color to match plate finish.
1.
2.
2.03
suit furniture, walls, etc.
Where only power poles are indicated, size for minimum of five No. 12 AWG
power and ground conductors with a minimum of six single receptacles; 20A;
heavy-duty; NEMA WD 6, configuration 5-20R units.
Material for Finished Spaces: Steel with wrinkled finish, white baked enamel,
suitable for field painting.
Material for Unfinished Spaces: Galvanized steel.
FINISHES
A.
Color: Manufacturers standard, as selected by the Contracting Officer’s Technical
Representative.
B.
Color of thermoplastic device plates shall be the same as the device or as selected
by the Contracting Officer’s Technical Representative. Provide red high-impact
smooth nylon plates for switches and receptacles on emergency circuits.
PART 3 - EXECUTION
3.01
INSTALLATION
A.
Secure all devices and assemblies plumb and secure.
B.
Arrange devices and assemblies, unless otherwise noted, mounted flush with long
dimension vertical, and grounding terminal of receptacles on top.
C.
Install wall dimming switches to achieve indicated ratings as noted on Drawings,
after derating for ganging as instructed by manufacturer. Connect wiring to
dimmer in accordance with manufacturer’s installation instructions, do not share
neutral conductor connected to load side of dimmers.
D.
Provide adequate protection for devices and assemblies prior to commencement of
painting. Install device wall plates and assembly cover plates upon completion of
painting.
E.
Connect wiring device and assembly grounding terminal to outlet box with bonding
jumper. Connect wiring device and assembly grounding terminal to branch circuit
equipment grounding conductor.
26 27 26 - 6
WIRING DEVICES
USAF Academy
Project No. XQPZ 10-0105C
3.02
F.
Connect isolated ground conductor of isolated ground receptacles to designated
isolated equipment grounding conductor terminal of electrical system.
G.
Tighten all electrical connectors and electrical terminals according to
manufacturers publishes torque-tightening values. If torque values are not
published, use torque values as specified in UL 486A and UL 486B.
IDENTIFICATION
A.
Comply with Division 26 Section “Common Work Results for Electrical.”
1.
2.
3.03
FIELD QUALITY CONTROL
A.
Site Tests, Inspections:
1.
2.
3.
3.04
Replace damaged and/or defective components. Adjust all floor service outlets,
flush poke-through assemblies and telephone/power service poles to suit
arrangement of partitions and furnishing.
CLEANING
A.
3.06
Test wiring devices for proper polarity and ground continuity. Operate each
device and assembly at least six times.
Test GFCI operation with both local and remote fault simulations in
accordance with manufacturer’s written testing procedures.
Check TVSS receptacle indication lights for normal operational status.
ADJUSTING
A.
3.05
Clearly label all devices and assemblies with Brother® #M231 adhesive
identification tape or approved equal, giving panel identification and branch
circuit number and durable wire markers or tags within outlet boxes. Exterior
device and assembly locations shall utilize non-adhesive Dymo® aluminum
tape labels or approved equal, fastened to device.
Where three or more switches are ganged, and elsewhere as indicated,
identify each switch with approved legend engraved on wall plate.
Keep all items protected before, during, and after installation. Clean area and
remove all debris. Remove all paint overspray and/or spattering from devices and
assemblies.
DEMONSTRATION
A.
The Contractor shall provide for demonstration and complete instruction to the
Governments’ operating personnel as to the operation, maintenance, and repair
procedures of all installed devices and assemblies.
END OF SECTION 26 27 26
26 27 26 - 7
WIRING DEVICES
USAF Academy
Project No. XQPZ 10-0105C