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SECTION 16000 - BASIC ELECTRICAL REQUIREMENTS
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 of this section.
1.2 SCOPE:
A. Provide all electrical work for a complete and operable system as shown on the drawings and as
. specified in this section, including but not limited to the following:
1. Site investigations prior to bidding to establish existing conditions.
2. Switchboards, panelboards, dry type transformers, and feeders for Power and lighting
as shown on the drawings.
3. Complete grounding system as required.
4. Lighting and power branch circuit wiring, including disconnect switches, time switches,
contactors, Photocell controls, relays, outlets, devices, Plates, materials, etc., for a complete
installation as shown on the drawings.
5. Lighting fixtures and lamps.
6. A telecommunication system including conduits, cables, backboards, terminal cabinets, and
grounding.
7. Provisions for Cable Television System.
- 8. Cutting and patching and sealing of penetrations.
9. Flashing of conduits at roof penetrations.
10. Provide materials and labor for electrical work as specified in other sections.
11. Record drawings.
12. Test of all electrically operated equipment. .
13. Guarantee
14. Painting of exposed conduit or equipment
15. Cutting and patching.
1.3 QUALITY ASSURANCE
A. In addition to the requirements of all governing codes, ordinances and agencies, conform to the
requirements of the following codes and standards:
1. Requirements of the Notional Electrical Code, latest adopted edition.
2. Requirements of State Fire Marshal, State and Municipal Building and Electrical Safety
ordinances.
3. All products in this work shall be UL labeled and shall conform to all requirements of the
National Board of Fire Underwriters for electrical wiring apparatus.
4. Requirements of all other authorities having jurisdiction.
1.4 JOB CONDITIONS
A. Drawings
1. The drawings are diagrammatic and indicate the locations of the components of the work,
and further indicate the required size and points of termination of the conduit, number and
size of wires. Provide all conduit, wire and necessary connections for the complete electrical
service, coordinating conduit runs with building structure, end all work of other trades.
2. Unless otherwise approved by the Architect, the following conditions shall be adhered to:
a. Group outlets and wiring devices within close proximity horizontally or vertically
for a uniform end neat appearance.
b. All equipment and material located outdoors or in hazardous or other special areas
shall be UL labelled for the conditions to be encountered.
1.5 PERMITS, FEES AND INSPECTIONS
A. Obtain and pay for all permits and licenses required for the electrical work, and arrange and
schedule all required inspections. Obtain permits prior to commencing any work.
1. Pay all fees or charges levied by the utility company or city for permanent and temporary services
to ths project, and any other imposed foes.
1.6 COORDINATION
A. Verify and coordinate all sizes of equipment to be installed within rooms with the manufacturer
of equipment, insuring adequate clearances, ventilation and access.
B. Coordinate work of mechanical trades for work required as a part of this section, and verify
quortity, sizes and location of all work.
C. Coordinate the work of all other trades, verifying all required clearances, proper sleeves,
supports, door swings and other items affecting this work. Determine in advance the methods
of installing and connecting all equipment, outlets and other items.
D. Include allowances for site conditions and civil, architectural and other drawings.
1.7 SUBMITTALS
A. Equipment order list:
1. Within twenty (20) days after award of contract, deliver to the Architect six (6) copies of
a complete list of equipment and materials ordered giving descriptien, plate numbers, date
of orders and requested delivery dates. Arrange delivery of proper quantities so that the
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progress of the w. rk will not be delayed.
8. Material list:
1. Submit complete material list for all products to be used in this work.
. C. Record drawings:
1. Mark and dimension actual routings of all underground conduits installed exterior to buildings
and all feeders under building slabs. Dimension the terminal location and show its depth
below finished grade for each underground stub -out.
1.9 GUARANTEE
A. All materials and equipment furnished and installed under this section of the specifications shall
be guaranteed in writing for a period of one (1) year from the date of final acceptance of the
building against defective material, design and workmanship. Upon receipt of notice from the
Owner of the failure of any part of the work during the guarantee period, the affected work shall
be replaced promptly with new work by and at the expense of the Contractor and at no cost to
the owner.
PART 2 - PRODUCTS
2.1 MATERIALS
A. Except where specifically indicated otherwise, provide only new materials having all legally
required approvals and /or labels.
1. Provide materials complying with the shndords of nationally recognized organizations (such as
ANSI, NEMA and UL).
2.2 MAIN SWITCHBOARD
A. Provide main switchboards containing service, metering, current transformer compartment, main
disconnect and distribution section as indicated and as required.
M. Enclosures
1. Totally enclosed sections bolted together to form a single floor - standing assembly, NEMA
Type 1 general purpose for indoor installation, front access only unless indicated. Provide
. service pull sections where required and size as required by the serving utility. Sections 90
in. high and all of the same depth, minimum 14 inches unless indicated. Legal gauge sheet
steel finished manufacturer's standard gray baked enamel. It is the Contractor's
responsibility to furnish a switchboard to fit the space indicated.
C. Busbars:
1. Rectangular cross- section, full height in -each distribution section with horizontal cross
busbaro between sections. Silver plated copper or tin plated aluminum bussing, joints and
connections, throughout. Short circuit capabilities in accordance with minimum re-
quirements for the circuit protectors unless indicated greater. Whenever future sections or
space for future expansion is indicated on the plans, provide bussing and covered opening
in switchboard as required for future expansion.
D. Lugs:
1. Lugs for all external and internal connections, plats or otherwise shall be suitable for either
copper or aluminum conductors.
I. Circuit protectors:
1. Circuit breakers or fused switches as indicated. Series rated minimum interrupting capacity
of 65,000 symmetrical RMS amperes.
a. Circuit breakers: Molded case, thermal magnetic type, padlockable in the "off"
position.
2. Fused switches: Quick -make, quick - break, visible blade, horsepower rated, spring pressure
fuse clip, and blade jaw contact, padlockable in the "off" position, with position - indicating
operating handles and deflectable cover interlock to prevent access to the fuses unless the
switch is in the "open" position.
3. Fuses: Current - limiting type, minimum 100,000 symmetrical RMS amperes interrupting
capacity, suss type RK5 -TD or equal by Gould, unless other class or type indicated. Provide
three spare fuses far each size and type and mount in a suitable cabinet behind a hinged
door with nameplate engraved "spare fuses". Locate cabinet on or near switchboard.
4. All circuit protectors shall have a short circuit interrupting capacity equal to or greater than
the available fault current at that point. If the available fault current is not indicated, it shall
be the Contractor's responsibility to obtain this information from the Architect. Failure to
do this will not entitle the Contractor to compensation for any additional costs incurred in
. meeting this requirement.
5. Fuse holders for current- limiting fuses shall be type T.
F. Metering provisions
- 1. Sequence of meter to main, pull section landing lugs, busbars and provisions for current
transformer as required by serving utility.
G. Distribution sections shall be convertible type with full length rectangular bussing and cross
bussing of capacity and poles as required on the drawings and braced to withstand 50,000 amps
symmetrical short circuit current (unless otherwise indicated).
H. Ends of switchboard shall be louvered. Each switch or breaker shall have an engraved bakelite
nameplate indicating equipment or panel controlled. Provide Gould Amp -Trap fuses or equal by
Buss or Economy, of proper size for each switch. Install with rejection clips.
I. All sections shall be equipped with micorta nameplates indicating "CAUTION - INSTALL ONLY
CURRENT- LIMITING FUSES AS ORIGINALLY INSTALLED ".
J. All fuses shall be current- limiting and shall adequately protect the equipment served from fault
currents in excess of their ratings.
K. Service switchboards shall be as manufactured by G.E., Westinghouse, Challenger or Square D.
L. Provide three (3) spare current - limiting fuses for each fuse rating shown on the single line
diagram.
M. Provide nameplates.
N. Use leveling screws to set the switchboard plumb and true.
2.3 PANELSOARDS
A. Provide panelboards with ratings, components and features in accordance with the single -line
- diagram and panel schedules on drawings.
1. Enclosures:
1. Legal gauge sheet steel box, galvanized for flush box, door and trim minimum No. 12 gauge
steel, flush or surface type as indicated. Hinged lockable door with concealed hinges and
fasteners. Weatherproof .where located outdoors.
2. With barriered top or side section having separate hinged lockable door where indicated.
Spray with acoustical material where used for contactors. Maintain 2 in. of solid trim
between doors.
C. Finish: Parts exposed to view to have one coat zinc chromate and one coat hommertone gray
or manufacturer's standard gray baked enamel.
D. Locks and Keys: Furnish flush type lock and two keys with each panelboard. All locks shall be
keyed alike.
E. Sizes: Minimum 20 in. wide unless indicated. Surface mount 5 -3/4 in. deep unless indicated.
Top and bottom gutters minimum 6 in. high. Provide 12 in. high gutter where double lugs are
required or where cable size exceeds bus size.
F. Provide additional side gutter space or separate barriered side section with cover where required
for feedthrough lugs.
G. Busbars: Bus shall be silver plated copper or tin plated aluminum. Provide split busbars where
indicated. Neutral bus electrically isolated from enclosure.
H. Lugs: Lugs for all external connections shall be suitable for copper conductors. Shop drawings
must indicate i ua t and sizes of lugs based on actual conductors to be used as q n _ty a g ct shown on the
plans.
I. Ground Bus: Whenever ground connectors are installed or required, provide a separate
equipment ground bus in Panel electrically connected to the enclosure.
J. Circuit Breakers
I. Molded case, thermal magnetic, automatic trip, bolted type. Common trip for multipole
types.
2. Voltage rating as required for the application. Series rated NEMA interrupting capacity of
minimum 65,000 RMS symmetrical amperes.
3. All circuit breakers which are located outside of air conditioned spaces shall be ambient
compensated. Use "HACR" circuit breakers for air conditioning loads. Use "SWD" circuit
breakers fair lighting circuits controlled from _panels.
4. Main breaker shall be padlockable in the "ofr position. All branch breakers shall be able to
accommodate lockout clips. Provide clip to lock breakers serving motors, refrigerators,
controls for mechanical systems. Circuit breakers controlling fluorescent fixtures (which are
not locally controlled) shall be capable of being locked in the "off" or "on" position.
5. Arrange all breakers to correspond exactly with the schedules.
6. Where indicated, provide main breaker, automatic type unless non - automatic indicated in
Panels.
K. Circuit identification:
1. Circuit number on black -on -white laminated plastic tabs or other permanent type not readily
changed from the front.
2. Under the Panel designation (in 1/4 in. high letters), indicate in 1/1 in. high letters the
voltage and phase, as:
"277/490 VOLT, 3 PHASE, 4 WIRE, 100A BUS"
2.4 TRANSFORMERS
A. Transformers shall be dry type, indoor or outdoor, self- cooled type minimum Class 155
insulation system rating. Transformers shall have four 2 -1/2% full capacity
taps. Transformers shall be of voltages, phase, and KVA ratings as shown on the drawings.
Mount on sound dampening material.
2.5 CONDUIT
A. Electrical metallic tubing (EMT) shall be galvanized. All couplings and connectors shall be
watertight compression type.
B. Metal -clad cable: Type MC cable shall be corrugated tube, Type CS. Mc cable shall include
a full size ground conductor and anti -short bushings at each termination point.
C. Flexible conduit shall be hot dipped galvanized steel.
D. Connections for flexible steel conduit shall be screw in type (joke) as manufactured by Duro
Fitting Company, or approved equal.
2.6 OUTLET BOXES
A. One -piece galvanized pressed steel knockout type equal to Steel City Manufacturing Company,
4" X 2 -1/9" square, minimum (wall), 4" square X 1 -1/2" deep minimum (ceiling).
1. Cast boxes shall be threaded hub cast ferrous, or aluminum boxes where legally permitted and
equal to Crouse- Hinds, Killark, or Pyle- National. Provide plugs for spare hubs.
2.7 VOICE /DATA OUTLET
A. Device shall be a duplex jack outlet by Hubbell #DJ00, coordinate device with owner's
equipment requirements. Color, as selected by Architect.
2.8 SHEET STEEL PULL BOXES
A. In wet locations, outdoors or where indicated to be weatherproof, provide boxes that have been
hot - dipped galvanized after construction and given two coats of gray color rust- resistant paint.
Install covers with stainless steel screws and neoprene gaskets. Seal around conduit entries with
silicone sealant, General Electric or equal
B. In dry locations, finish all box surfaces with one coat of metal primer and one coat of primer
sealer.
2.� CONDUCTORS
A. Provide new conductors manufactured within one year of date of delivery to job. Deliver
conductors to site in their original unbroken packages or on their original cable reels. All
conductor packages and cable reels shall be marked and tagged plainly with UL label, size,
voltage rating, insulation type, type of stranding, manufacturers name, trade name and month
and year when manufactured.
1. Conductors shall be soft drawn, minimum 98% conductivity. stranded copper, type THW, XHHW
or THWN/THHN, 600 volt, unless otherwise noted. Power conductors No. 10 AWG and smaller
shall be solid.
C. Aluminum conductors are not acceptable.
D. Use only plated copper alloy connectors or lugs. Aluminum connectors or lugs are not
acceptable. The following connectors are provided for copper conductors:
1. For wire No. 10 AWG and smaller. 3M "Scetchlec ", Ideal "Supernut ", Buchanan "03 ".
2. For wire No. 9 AWG and larger. Durndy "Versitaps" and heavy duty connectors, O.Z.
solderless connectors or the equivalent by Buchanan, Kearney or Penn - Union.
2.10 WIRING DEVICES
A. Wiring devices shall be Decors Style as follows, or approved equals:
LEVITON MS5 dt SEYMOUR
SINGLE POLE SWITCH 5621 -2 -W 2621 -W
TWO POLE SWITCH 5622 -2 -W 2622 -W
THREE WAY SWITCH 5623 -2 -W 2623 -W
FOUR WAY SWITCH 5624 -2 -W 2624 -W
DUPLEX RECEPTACLE 16352 -W 26352 -W
GROUND FAULT CIR. Bi99 -W 2094 -W
INT.
B. Receptacles shall be bonded in accordance with Article E250 -74 of Title 24, State of Colifemi■
Administrative Code.
C. Finish of devices shall be as selected by Architect.
2.11 TOGGLE SWITCHES
A. For flush - mounted weatherproof switches, provide gasketed stainless steel lift cover plate, Pass
& Seymour We series. Where surface mounted, use cast box with gasketed cast aluminum lift
cover plate, Hubbell No. 7420, where applicable.
2.12 COVER PLATES
A. Plates shall be Decora Style white plastic U.O.N.
2.13 TiME SWITCHES
A. Provide all time switches with minimum ratings and features as follows:
1. Minimum one spare pole except when controlling mechanically held contactors or relays.
2. Minimum setting of three hours.
3. Motor and contact voltages as required.
4. Eight hour spring driven automatic rewind reserve power.
5. Contacts rated 1 H.P. at 120 volt and 40 amperes at 277 volts AC except contacts may be
rated a minimum 10 amperes when controlling relays or contactors.
6. Skip -o day feature.
B. Time switches controlling mechanical systems or equipment shall have additional features as
follows:
1. Single throw contacts.
2. 24 hour dial.
3. Or as specified under Section 15000
C. Time switches controlling lighting branch circuits or lighting contactors shall have additional
features as follows:
1. 24 hour dial with photocell "on ", for exterior or daylight areas.
2. 24 hour dial for interior.
D. Unless otherwise indicated, all time switches shall be installed in panelboards, switchboards
behind separate hinged doors or in relay compartments. Provide a minimum 12" X 12" opening
behind door for the time switch. Time switch enclosures may be omitted if barriers and mounting
brackets are provided.
E. Where indicated, provide time switches in NEMA 1 enclosures for individual flush mounting in
areas with concealed wiring, and in NEMA 1 enclosures for surface mounting in areas with
surface mounted wiring..
F. Time switches shall be as manufactured by Paragon, Tork or Sangamo.
2.14 PHOTOELECTRIC CONTROLLERS
A. As manufactured by Automatic Switch Company, Square D, Tork, Paragon, or Songamo.
2.15 CONTACTORS
A. As manufactured by Automatic Switch Company, Square "Do, G.E. or Westinghouse.
2.16 SUPPORTS
A. Swing connectors for steel rods supporting hanging electrical equipment (transformers, junction
boxes, etc.) shall be equal to Steel City E -165, E -170 and E -232.
2.17 DISCONNECT SWITCHES
A. For all motors or equipment out of sight of the controller or more than 50 feet from the controller,
provide a disconnect switch at the motor or equipment location.
B. Unless otherwise indicated or required, use only nonfused type for motor or equipment
connections. Provide switches with the number of poles and the voltage, current and
horsepower ratings as required.
C. Non - fusible disconnect switches' shall be some type as specified for fusible disconnect switches,
except for single phase motors 2 H.P. or less, manual motor starters may be used.
D. Fusible disconnect switches shall have quick -make, quick -break mechanism and on interlocked
cover which cannot be opened when switch is in the "on" position and be provided with voidable
interlocks. Switches shall be horsepower rated and type that can be used on inductive loads.
E. Provide a fusible disconnect within sight of and readily accessible from air conditioning
equipment, per NEC 440 -14. Size fuses per equipment nameplates.
F. Provide externally operable, quick -make, quick -break type with cover interlock and padlockable
in either the open or closed position. Unless indicated otherwise, provide switches indoors in
NEMA Type 1 enclosure. Provide switches outdoors, or where indicated or required to be
weatherproof, in NEMA Type 3R raintight enclosure. Provide each switch with a nameplate indi-
cating equipment controlled.
2.19 LIGHTING FIXTURES
A. Provide, install and connect all lighting fixtures indicated on the drawings according to the fixture
schedule.
1. All fixtures of the some type shall be of a single manufacturer and of identical finish and
appearance.
2. All light fixtures shall be U.L. labelled.
2.19 BALLASTS
A. Fluorescent ballasts shall be electronic premium type CBM certified and ETL approved, high
power factor and of voltage required. Ballasts shall be Advance, Universal, Magnetek or
Motorola.
B. HID ballasts shall be UL listed for the source, wattage and position of the lamp provided.
C. Dimming ballasts shall be Advance.
2.20 LENSES AND DIFFUSERS
A. 100% virgin acrylic with 0.125 inch minimum thickness. Outdoor lenses shall be vandal /weather
resistant.
2.21 OCCUPANCY SENSORS
A. Occupancy sensors shall be wall mounted with override switch capabilities (bi -level where required) or ceiling mounted
120/277 volt by Wattstopper or equal by Hubbell. Provide sensors in every location where fluorescent lighting is utilized and
and the fixtures are not controlled by the Low Voltage Remote Control Relay System.
2.21 SOUND DAMPENING MATERIAL
A. Lowery clay pads.
2.22 PLYWOOD BACKBOARDS
A. Douglas fir plywood, exterior grade, 4" x 4' X 3/4 in. thick (minimum) finished one side and
primer coat painted on all surfaces with finish coat of light gray enamel on front (finished) side.
2.23 VANDAL.PROOF FASTENINGS
A. Provide approved vandalproof type screws, bolts and nuts where exposed to right throughout
the project. Provide Owner with six (6) screwdrivers for this type.
2.24 TERMINAL CABINETS
A. Terminal cabinets shall be fabricated of code gauge sheet steel, size as indicated on the drawing,
complete with hinged dears and the number of 2 -way screw terminals required for termination
of all conductors. The door to terminal cabinets shall be continuously hinged on one side and
be the some size as the cabinet so as to allow maximum termination space within the cabinet.
Terminal cabinets shall have 5/9" plywood backing finished in black insulating varnish.
1. All terminal cabinets shall be finished with one coat of zinc chromate and a cost or primer sealer
after a thorough cleaning where exposed to public view (e.g., corridors, covered passages,
offices, etc.). Prime coated terminal cabinets shall be painted to match surroundings after
installation.
C. Terminal cabinets not located in electrical rooms or electrical closets shall have CCL Security
Products 15767 locks and keys.
D. Terminals for signal systems cabinets to be Cannon Type "SS" or equal.
E. Provide engraved nameplate on each cabinet indicating Its designation and system (le., "Life
Safety System - Panel 2LS ").
2.25 DIMMERS
A. Flourescent dimmer to be Leviten . 2000 watt minimum.
S. Low voltage dimmer to be Lutron. 600 VA minimum.
C. Do not break dimmer fins.
PART 3 - EXECUTION
3.1 STORAGE
A. All materials and equipment in storage and during construction, shall be covered in such a
manner that no finish surface will be damaged or marred, and all moving parts shall be kept
perfectly clean and dry.
3.2 EXCAVATIONS
A. Trenches for underground conduit exterior to building shall provide a minimum earth cover of 24
inches for conduits unless noted otherwise. Conduits for landscape and parking lot lighting may
be minimum 18 inches below finished grade unless noted otherwise.
3.3 CONCRETE
A. Provide concrete pads (minimum 4 in. high) for all floor mounted equipment installed outdoors,
in mechanical equipment rooms and in areas susceptible to being wet or hosed down.
3.4 SLEEVES
A. Provide sleeves of sufficient size to permit ready installation of each conduit which passes
through concrete walls or suspended slabs. Sleeves in concrete beams, joists, columns or
footing walls may be installed only where permitted by the Structural Engineer.
B. For conduit that passes through suspended concrete slabs, place sleeves with the top 1 inch
above finished slab and the bottom flush with underside of slab. In all other cases, place sleeves
with the ends flush with concrete surfaces. Space sleeves at least three diameters apart on
center or more if required by the Architect.
C. Where conduits pass through fire resistive walls, ceilings or floors, they shall b e p acked with fire
resistant compound or concrete.
D. Provide sleeves of galvanized sheet steel and of proper gauge to retain their shape during forming
and concrete operations. Where a conduit passes through an exterior surface, seal the space
between the co nduit and its sleeve with an a pp roved watertight compound.
3.5 ROOF STUBS
A. At built -up roofing, provide pitch pockets at all roof stubs. For other type roofs, provide a
galvanized iron roof jack of the proper size for each conduit that stubs --up through a roof. Flash
and counter flash. Coordinate this work with affected trades. Install roof seals in such a manner
as not to void roof guarantees.
3.6 CONDUIT
A. Unless otherwise indicated, provide conduits of type permitted or required, for all conductors
or cables of all systems and voltages.
1. Conduits shall not contain more than nine (9) conductors unless indicated except for signal,
remote control or communications systems.
C. All conduit shall be concealed unless otherwise indicated or required.
D. Unless otherwise indicated, use electrical metallic tubing (EMT)
as follows. above grade in dry locations, in accessible ceilings, and where not subject to
mechanical injury or otherwise prohibited. Concrete or masonry in contact with earth are not
considered dry locations.
E. Metal -clad cable may be used where concealed for fire alarm and branch circuiting of lighting and
convenience receptacles (it is not permitted exposed, at projection booths or at concession stands).
F. Flexible steel conduit shall be used only.
1. Where indicated, six foot maximum length plus green ground wire.
2. For final connections to motors, vibrating equipment or where required for equipment
servicing.
3. For connections to recessed lighting fixtures from nearby accessible junction boxes.
4. For concealed runs in stud walls, in inaccessible ceilings and in dry locations where
structural conditions prevent the use of other types of conduit or where excessive cutting
or notching of wood members would otherwise be required.
G. Size all conduit as required, or larger where indicated or preferred. Where portions of a conduit
run are increased in size for whatever reason, make all remaining portions in that run the some
size and increase junction box sizes or fittings as required.
H. Seal ends of all conduit with approved manufactured conduit seals, caps or plugs immediately
after installation. Keep ends sealed until immediately prior to pulling conductors.
I. Where conduit is underground, under slab or grade, exposed to the weather or in wet locations,
make joints liquidtight and gastight, End of underground feeder conduits shall be sealed after the
cable is installed to prevent breathing and condensation.
J. Keep bends and offsets in conduit runs to an absolute minimum. For the serving utilities, make
large-- radius bends to meet their requirements. Replace all deformed, flattened or kinked conduit.
K. Support conduit at legal intervals. Provide additional supports as required to prevent sagging or
as directed. Perforated strap or plumbers tape is net acceptable for conduit support. Hang
supports from structural members or approved concrete hangers.
L. Where conduit may be affected by dissimilar movements of the supporting structures or medium,
provide suitable flexible or expansion devices.
M. Route conduit to avoid drains or other gravity lines. Where conflicts occur, relocate conduit as .
required.
N. Run all conduit parallel with or at right angles to structural members, walls or lines of the
building. Route all exposed conduit to preserve headroom, access and work space.
0. Do not run conduit in concrete members or suspended slabs unless approved in writing by the
Structural Engineer.
P. All rigid conduit stubs -up in concrete floors shall have couplings flush with finished floor unless
noted otherwise.
Q. Provide a pal repylene rope rated 700 pounds tensile strength in each conduit (more than 10
feet in lengt'I left empty for future use.
R. Terminate above -grade stubs with plugged couplings set flush with building exterior.
S. At completion of underground conduit installation, pull a flexible mandrel 12 inches long by a
P g P
diameter 1/4 in. less than the inside diameter of the conduit) through each conduit, followed by
a stiff - bristle brush. Cap conduits at both ends.
T. Conduits shall not be run through structural members except as specifically directed in writing
by the Structural Engineer.
U. Conduits above future suspended ceilings shall be installed as high as possible against the
structure above.
V. Conduit stubs Into accessible ceiling spaces or other similar areas shall terminate with a nylon
bushing to prevent damage from pulling future cables.
3.7 OUTLET BOXES
A. Outlet boxes shall be of minimum size per Part 2 or larger as required by NEC, exclusive of cover
rings.
1. Use cast metallic boxes where legally required.
C. Use solid type gang boxes where required for more than two devices or for barriered outlets.
Use concrete boxes for outlets in concrete construction. For boxes not indicated, provide types
and mountings as required to suit the equipment or as directed.
D. Support recessed boxes in stud partitions with galvanized steel box hangers of types made
specifically for the purpose.
E. All boxes shall be of proper code size for number and sizes of conductors passing through or
terminating therein.
F. Provide covers of the types most suitable for the fixtures or devices used at the outlets. In brick,
concrete block, stone or tile walls, use square cornered tile covers of proper depth to permit a
facing of the material to frame the cover. In outlets supporting lighting fixtures, provide 3/8 in.
adjustable fixture studs.
G. Use extension rings with blank covers for making exposed conduit connections from flush wall
or ceiling outlet boxes.
H. Use outlet boxes serving fixtures or devices as pull or junction boxes wherever possible. Where
not possible, locate pull and junction boxes in accessible ceilings, in accessible areas not subject
to public view or elsewhere as directed. Pull or junction boxes shall not be located in finished
areas unless approved by the architect.
I. Single gang handy or utility boxes may be used for single devices at ends of runs.
J. All outlet boxes that finish to an exposed masonry surface shall have 1 -1/4 in. loop plaster rings
and shall be set deep enough to allow a masonry facing ever the plaster ring to frame the
opening. Plaster rings shall not be grouted into exposed masonry walls. Center outlet in a
course of masonry.
K. Take particular care in locating outlet boxes in acoustical tile, masonry, paneling or other modular
type finishes. Where Architect's documents do not dictate location or control, consult with
trades concerned so that outlets may be symmetrically placed in the finished module. Center
outlets horizontally in vertical wall panels and vertically in masonry courses. (Adjust indicated
heights to suit.)
L. Flush couplings shall be regular coupling with plumber type brass plug. Install this plug flush
with finish floor. Use oil or grease on top of and in threads to prevent sticking.
M. All outlet boxes shall be accurately placed and securely fastened to the structure independently
of the conduit. The plaster ring shall be set flush with the finish surface of the ceiling or wall.
Approved bar hangers shall be used to support outlet boxes in all furred ceilings and stud walls.
Hangers for light outlets shall have adjustable studs.
N. Before roughing In boxes for switches at deers, contractor shall verify door swing to make sure
that switch s on the strike side of door.
itch i
0. Crouse -Hinds "condulets" shall be used for all switches, receptacles and junction boxes where
conduit is exposed.
P. Outlets shall not be installed back -to -back, but shall be offset 12" minimum.
3.8 SHEET STEEL PULL BOXES
A. Where indicated or required to serve as pull boxes or junction boxes, provide sheet steel boxes
with screw --on covers for surface or flush mounting.
3.9 CONDUCTORS
A. Store conductors out of the weather and where not subject to damage or deleterious conditions.
D. Before installing conductors, remove debris and moisture from conduit and equipment enclosures.
Where necessary use linseed soap, minerallac or other specifically approved wire pulling
compound to facilitate the installation of conductors. Do not use oil, grease or similar
substances.
C. Color code branch circuits as required.
D. Connect control wiring as indicated and in accordance with wiring diagrams furnished by
equipment manufacturers. Color code and tag all control wiring.
E. Make joints, splices, tops and connections for 600 volt conductors with solderless connectors.
F. Re- tighten belt type connectors 24 to 48 hours after installation and before taping.
G. Connectors and terminal lugs for stranded conductors #6 and larger shall be T Jc D or equal,
solderless connectors. No splices of feeder conductors shall be made in panels or switchboards.
H. Make all connections and splices necessary to properly install and complete the work, and all
splices shall be taped. All connections and splices shall be electrically and mechanically perfect,
and in strict accordance with all code requirements. Use 3M Scotch No. 33 plus" tape, or
equal.
I. Connections made with non - insulated type connectors shall be taped with rubber -tape 1 -1/2 "
times the thickness of the conductors insulation. Then covered with 3M Scotch No. 33 plus
tape, or equal.
J. Neatly arrange and lace conductors in switchboards, panelboards, gutters and terminal cabinets
by means of nylon T & B "Ty -rap" ties.
3.10 TOGGLE SWITCHES
A. All switches shall be specification grade rated 15, 20 or 30 amperes at 125/277 volt AC, totally
enclosed quiet action type, 1 or 2 pole, 3 or 4 way, momentary contact or lock type as required.
The 15 ampere rated switch may be used only for lighting loads of less than 10 amperes.
Switches ahead of motors shall be horsepower rated and shall have number of poles as required.
Toggle colors shall be as selected by the Architect.
3.11 RECEPTACLES
A. Where single receptacles are indicated, provide matching units to those listed for duplex
receptacles. Provide short strap units where required for panel mounting.
B. Mount all weatherproof receptacles horizontally with hinge on top.
3.12 COVER PLATES
A. Provide plates for all outlet boxes and fittings of all systems except at outlets where fixture
canopies are used.
B. Provide weatherproof covers on weatherproof devices. Use cost gasketed covers for exterior pull
or junction outlet boxes or fittings.
3.13 LIGHTING SYSTEM
A. Lighting fixtures shall have all parts and fittings necessary to completely install the fixtures.
Wiring running in fixtures shall be type "THHN or "MTW . Fixtures shall be equipped with
lamps of size and type as shown in the Fixture Schedule. Items of trim or decoration shall be
supplied and properly installed after other trades have finished their work and cleaned the area.
S. All light fixtures installed outdoors in locations protected from the weather (as under canopies)
shall be rated for outdoor use, gasketed and finished with an epoxy type paint or other approved
corrosion resistant finish.
C. Surface mounted fixtures and outlets for surface mounted fixtures are shown diagrammatically
on drawings and shall be located so as to clear all door swings including cabinet door swings.
Where it is not possible to clear a door swing, the contractor shall verify clearances above the
top of the door with architectural drawings, details, sections, elevations and door schedules.
Typical throughout project.
3.14 SIGNAL CONDUIT SYSTEM
A. Signal outlets in solid walls shall be 4- 11/16" square, at least 2 -1/9" deep with single gang
1 -1/4" deep plaster ring. Ratings for outlets in fire rated walls shall exceed the wall rating.
B. Outlets in hollow walls shall be single gang plaster ring. Strap conduit adjacent to outlet and
terminate with cable bushing
C. Signal conduits shall be 3/4 minimum size unless otherwise indicated on the drawings and shall
be EMT or rigid galvanized steel. 3/4" and 1 conduit bends shall have 12 minimum radius.
1 -114" and larger conduit shall have 30" minimum radius. No coupling shall be placed in bends.
Each run of conduit shall have a maximum of two 90 degree bends. Install additional pull boxes
if more than two bends are required per run. Where conduit enters building, keep conduit free
of contact with reinforcing steel and other metallic structures or pipe.
D. Install 1/2" conduit from telephone backboard to nearest cold water pipe in an accessible
location, and 1 "C- 1 #6 to grounding box. .
3.15 PLYWOOD BACKBOARDS
A. For telephone or communications system terminals or for motor control or other equipment
assemblies, provide backboards of size indicated or larger if required.
3.16 NAMEPLATES
A. Provide a nameplate for each switchboard, panelboard, terminal cabinet, backboard, individually
mounted circuit breaker or motor control, safety switch, pull box, control panel, relay and for any
other control device or major item of electrical equipment.
1. Provide black -on -white laminated, plastic micarta nameplate engraved in minimum 1/4 In. high
letters to correspond with the designation on drawings. Provide other or additional information
on nameplates where indicated.
C. Attach nameplates to equipment with rivets, bolts, sheet metal screws or install in metal holders
welded to the equipment.
3.17 GROUNDING
A. Ground the neutral of each isolated electrical system having a neutral conductor with a system
ground connection sized as required.
1. For the system ground connection, provide a green color insulated copper conductor in a rigid
steel conduit to the ground electrode. Connect the conduit and conductor to the electrode with
a malleable iron conduit hub and a 2 -bolt ground clamp.
C. Where the cold water piping system is unsuitable for use as a grounding electrode and where
local code permits, provide copper -clad multiple -rod electrodes complying with all legal
requirements including rod size, spacing accessibility and resistance to ground.
D. Use the conduit system for equipment and enclosure grounding. Where non - metallic conduits
are used, provide a green color insulated ground conductor of code size within the conduit and
terminate properly to the equipment enclosure at each end. (Use separate ground busbars in all
panelboards and switchboards.) Increase conduit, fittings and pullbox sizes as required to
accommodate the additional conductor.
E. Provide bonding devices, fittings or jumpers at expansion fittings or wherever continuity of
grounding is not certain or where required by inspecting authorities.
3.18 SUPPORTS
A. Provide all necessary foundations, supports and backing for all enclosures, conduits equipment,
outlets, devices and lighting fixtures.
1. Attach all boxes, outlet boxes, straps, cabinets and equipment to wood with wood or lag screws,
to metal with machine screws or bolts, and to concrete with expansion anchors or self drilling
metal anchors, and with machine screws or bolts. Use size and number of attachments as
required to support equipment weight with a minimum safety factor of 4 to 1.
C. Secure floor mounted equipment to floor with machine bolts and anchors.
D. Provide structural concrete bases for lighting poles per Structural Engineer's and manufacturer's
recommendations as shown on the drawings.
E. Contractor shall verify all mountings and installations shall conform to California seismic
requirements.
3.19 TESTING
A. All wiring and connections shall be tested for continuity, shorts and improper grounds in
accordance with the requirements of the National Electrical Code. All receptacle outlets shall be
tested for proper grounding. Any and all repairs resulting from the tests or preliminary operation
of the equipment shall be made by the Contractor at his expense.
1. Required tests, in addition to those mentioned above, include but are not limited to:
1. Ground resistance test.
2. Service and feeder conductors insulation resistance.
3. Ground fault protection.
4. Such other tests as may be required by the Architect.
C. When the work is substantially complete, conduct ■ service voltage test as follows:
1. Measure service voltage at no load and at maximum load and submit results to Architect.
2. If in the opinion of the Architect the voltages and regulations are not within acceptable
limits, notify the serving utilities for proper electrical service and then verify that such has
been accomplished.
D. After the service voltage test, and at a time selected by Architect, conduct an operating test of
the electrical system in the presence of the Architect. The system shall:
1. Operate in accordance with requirements of the contract documents.
2. Be free of electrical and mechanical defects.
E. Upon completion of the work, the Contractor shall make additional tests as necessary to satisfy
the Owner and the Architect or his representative that the true intent and meaning of the
drawings and specifications have been carried out. Contractor shall provide all instruments and
labor necessary to make such tests. Any work showing faults under test, and any work not in
accordance with the specifications, shall be made good by the Contractor at his own expense.
Such tests may occur at anytime during the guarantee period.
.
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