# ELECTRICAL PRODUCTS -- Standard Specification

## GENERAL

A.  All electrical materials shall be new and as listed by the
    Underwriter\'s Laboratories, Inc., or other nationally-recognized
    testing laboratory, for the intended application, unless specific
    exemption is made in the Contract Documents.

B.  All similar materials and equipment shall be the product of the same
    manufacturer, or listed as an assembly thereof.

C.  Materials and equipment shall be the standard product of
    manufacturers regularly engaged in the production of such material
    and shall be the manufacturer\'s current and standard design.

## CONDUIT AND TUBING

A.  Rigid Steel Conduit: Rigid, threaded, thick-wall, zinc-coated on the
    outside and either zinc-coated or coated with an approved
    corrosion-resistant coating on the inside.

B.  Rigid Aluminum Conduit: not permitted unless specified on Drawings.

C.  Intermediate Metal Conduit (IMC): Rigid, threaded, light weight
    steel, zinc-coated on the outside and either zinc-coated or coated
    with an approved corrosion-resistant coating on the inside.

D.  Rigid Nonmetallic Conduit: Schedule 40, high impact PVC with 5,000
    psi tensile strength at 73.4 degrees F., approved for 90 degrees C
    conductors.

E.  Electrical Metallic Tubing (EMT): Mild steel, zinc-coated on the
    outside and either zinc-coated or coated with an approved
    corrosion-resistant coating on the inside.

F.  Flexible Conduit: Commercial, galvanized steel; comply with UL 1,
    "Flexible Metal Conduit."

G.  Liquid-Tight Flexible Conduit: Flexible galvanized steel tubing with
    extruded liquid-tight, sunlight-resistant PVC outer jacket; comply
    with UL 360, "Liquid-Tight Flexible Steel Conduit."

H.  Expansion Fittings: Malleable iron, hot-dipped galvanized with
    factory installed packing and a grounding ring.

## CONDUCTORS

A.  Unless otherwise noted, all conductors shall be annealed copper with
    minimum 98% conductivity and shall conform to the applicable
    standards of UL, ANSI, and ICEA.

B.  Branch circuit conductors shall not be smaller than No. 12 AWG
    copper wire.

C.  All conductors No. 8 and larger shall be stranded.

D.  Unless otherwise specified, the minimum size for Class 1
    remote-control and signal circuits shall be No. 16 AWG and for Class
    2 low-energy control and signal circuits shall be No. 20 AWG.

E.  The use of solid or stranded wire shall meet the equipment
    manufacturer installation requirements.

F.  Unless otherwise specified, all conductor insulation shall be type
    THHN or THWN for 600V and below. Other types of conductors shall be
    installed where shown on Drawings.

G.  All conductors shall be color coded per SNL Standard Drawing
    E-0006STD.

H.  Metal-clad cable (MC cable) may be used for branch circuit wiring of
    120/208 volt receptacles, 120/277 volt lighting, and similar
    terminal loads such as valves, dampers, variable-air-volume units,
    etc., where it meets the following:

    1.  The cable shall be concealed in walls or above accessible
        ceilings.

    2.  The cable may not be surface mounted.

    3.  The cable's conductors shall be copper, minimum #12 AWG THHN,
        with green-insulated ground.

    4.  The cable's conductors shall be color coded per SNL Standard
        Drawing E-0006STD. When the cable's integral insulation color is
        not in compliance with this requirement, apply colored sleeves
        at the accessible points.

    5.  The cable's outer jacket may be aluminum or steel, and may
        further be coated with a PVC or similar jacket where required
        for the installation's conditions.

    6.  The maximum number of conductors allowed in a single cable
        assembly is limited to five, including the neutral and ground
        conductors.

    7.  MC cable may not be used for fire alarm devices and associated
        circuits.

    8.  When used as a terminal connector, maximum length shall not
        exceed six feet.

## OUTLET, JUNCTION, AND PULL BOXES

A.  Outlet Boxes

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1.  Only zinc-coated or cadmium-plated sheet-steel boxes, of a class to
    satisfy the conditions for each outlet, shall be used in concealed
    work.

2.  Boxes mounted on the outside of the building walls shall be cast
    construction, with threaded hubs and gasketed covers.

3.  Switch, telephone, and receptacle outlet boxes shall not be less
    than 4 inches square, fitted with appropriate plaster rings, where
    necessary to set flush within the finished surface.

4.  Outlet boxes for exposed work shall not be less than 4 inches square
    with appropriate covers for surface work. \"Handy\" boxes may be
    utilized in accordance with the NEC requirements. Cut-in boxes are
    allowed to be installed for non-exposed work.

5.  Fixture outlet boxes on ceilings shall not be smaller than 4-inch
    octagonal type.

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a.  Fixture outlet boxes in concrete ceilings shall be of the 4-inch
    octagonal type, set flush with the finished surface.

b.  Fixture outlet boxes in plaster or other similar type ceilings shall
    be fitted with open covers (plaster rings) set to come flush with
    the finished surface.

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6.  Each box containing an equipment grounding conductor serving motors,
    lighting, fixtures, or receptacles shall be provided with a
    grounding terminal.

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a.  NOTE: The grounding terminal shall be green colored.

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7.  A device plate shall be provided for each outlet to suit the device
    installed.

    a.  All outlet cover plates on unfinished walls or on any surface
        mounted devices shall be of zinc-coated sheet metal, having
        rounded or beveled edges.

    b.  Unless otherwise indicated, all plates on finished walls shall
        be of ivory- colored metal or heavy-duty ("unbreakable") nylon.

    c.  Screws shall be of metal with counter sunk heads with a finish
        to match the finish of the plate.

    d.  The use of sectional device plates is not permitted.

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B.  Junction/Pull Boxes

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1.  Pull boxes shall be constructed of code-gage galvanized sheet metal
    not less than the minimum size recommended by the National
    Electrical Code.

2.  Boxes shall be furnished with screw fastened covers unless otherwise
    specified.

## WIRING DEVICES

A.  Receptacles: All receptacles shall be of the type shown on Standard
    Drawing E-0006STD, or as specifically described on the Drawings.

B.  Light Switches

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1.  Light switches shall be Industrial Specification Grade (Commercial
    Specification Grade not allowed), fully-rated for 20 amps at 120/277
    volts.

2.  Where light switches with pilot lights are indicated in Drawings,
    provide switch as specified above with an integral neon or LED light
    which is illuminated when in the "ON" position, unless specifically
    noted otherwise.

3.  Where 3-way or other special switches are required, they shall be by
    the same manufacturer and same quality as the single pole switches.

## SAFETY SWITCHES, DISCONNECTS, AND FUSES

A.  Unless specified otherwise, all safety switches and disconnects
    shall be of the heavy-duty type.

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1.  Safety switches and disconnects shall be NEMA Type HD and shall be
    horsepower rated if a motor(s) is served by the device.

2.  All exterior mounted switches shall be NEMA type 3R, gasketed,
    unless noted otherwise on the Drawings.

3.  Safety switches and disconnects shall be furnished with provisions
    for lockout-tagout (LOTO).

4.  Safety switches and disconnects shall include the manufacturer's
    approved equipment grounding terminal or grounding kit.

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B.  Contractor shall furnish a complete set of fuses for all switches
    where fuses are specified. Fuses shall be dual element, time-delay,
    class \"R\", rejection type, unless otherwise specified on Drawings.

## CABINETS

A.  Cabinet boxes shall be constructed of zinc-coated sheet steel and
    shall conform to the requirements of Underwriter\'s Laboratories,
    Inc. Standard for Cabinets and boxes (UL #50).

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1.  Trims and doors shall have a suitable primer coat and a finish coat
    of a color specifically designated.

2.  Each cabinet box shall be constructed with interior dimensions not
    less than those indicated on Drawings.

3.  Cabinet trim shall be fitted with hinged door and flush latch.

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B.  Boxes shall be provided with a 3/4 inch exterior grade, one-faced
    \"B\" grade, or equal plywood backboard inside painted white unless
    otherwise specified on Drawings.

C.  Cabinets shall have their identification letters shown on engraved
    plastic plates as shown on Standard Drawing E-0006STD.

## GROUNDING AND BONDING

A.  Grounding and bonding products, whether or not indicated on the
    Contract documents, shall be of sizes and ratings to comply with the
    NEC. Where types, sizes, ratings, and quantities indicated are in
    excess of NEC requirements, the more stringent requirements and the
    greater size, rating, and quantity indications govern.

B.  Grounding and bonding conductors shall be copper. Equipment ground
    conductors run with circuit conductors and grounding electrode
    conductor shall be insulated with green outer finish, unless noted
    otherwise on the Contract documents.

C.  Unless noted otherwise, all conductors No. 8 AWG and larger shall be
    stranded, Class B in accordance with ASTM B8.

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1.  Uninsulated conductors shall be bare copper in accordance with ASTM
    B3, tinned in accordance with ASTM B33, or alloy-coated in
    accordance with ASTM B189.

2.  Use tinned or alloy-coated in corrosive environments.

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D.  Grounding connectors shall be listed and labeled for grounding
    application. Connectors shall be high-conductivity, heavy-duty
    units.

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1.  Compression Connectors: Shall comply with IEEE STD 837, ANSI/UL-467.

2.  Welded Connectors: Exothermic-welded type, in kit-form, and selected
    per manufacturer's written instructions.

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E.  Ground rods shall be copper-clad steel with high-strength steel core
    and electrolytic-grade copper outer sheath, molten welded to core.
    The minimum rod size shall be 3/4 inch by 10 feet long.

## MOTORS

A.  Exact motor specifications, when required, will normally be given in
    Division 15, Mechanical specifications. Therefore, coordination with
    mechanical Contractor is required.

B.  In addition to the above requirements, each motor shall be of
    sufficient size for the duty to be performed and shall not exceed
    the full rated load when the driven equipment is operating at
    specified capacity under the most severe conditions likely to be
    encountered.

## MOTOR CONTROLLERS (STARTERS)

A.  All controllers shall conform to the adopted standards and
    recommended practices of the Industrial Control Standards of the
    National Electrical Manufacturers\' Association and the
    Underwriter\'s Laboratories, Inc.

B.  Each motor or group of motors requiring a single control shall be
    provided with a suitable controller and devices which will perform
    the functions as specified for the respective motors in other
    sections of these specifications.

    1.  Each motor, except those whose impedance is sufficiently high to
        prevent over heating due to failure to start, such as clock
        motors, shall be provided with overload protection, either
        integral with the motor or controller, or mounted in a separate
        enclosure.

        a.  Unless otherwise specified, protective devices shall be of
            the manual reset type. Manual controllers for motors, larger
            than 1/4 horsepower, shall be specifically designed for the
            purpose and shall have a horsepower rating adequate for the
            motor.

        b.  Where overloads are supplied with controllers, these shall
            be sized after receipt of the equipment to be protected in
            accordance with nameplate data.

        c.  Overload protection for substituted multispeed motors shall
            be arranged to protect all windings and shall be so designed
            that if an overload occurs in one winding, all windings will
            be disconnected simultaneously.

        d.  Motor controllers shall have LED type pilot lights as
            follows:

            1.  The color for indicating motor is operating shall be
                red; for stopped shall be green, unless indicated
                otherwise on the Drawings or in the Motor Control Center
                Special Construction Specifications.

            2.  Additional lights for low/high speed shall be included
                as indicated on the Drawings or in the Motor Control
                Center Special Construction Specifications.

    2.  When automatic control devices such as thermostats, floats, or
        pressure switches are substituted by Contractor for specified
        devices, and they control the starting and stopping of motors
        directly, they shall be designed for the purpose and have
        adequate horsepower ratings.

> NOTE: When the automatic control device does not have such a rating, a
> magnetic starter shall be used with the automatic control device
> actuating the pilot control circuit.

## LIGHTING FIXTURES

A.  Refer to Section 16501, "Fluorescent Luminaires", for all
    requirements concerning fluorescent lighting.

B.  Refer to Section 16514, "Electrical High Intensity Discharge (HID)
    Luminaires", for all requirements concerning building HID lighting.

C.  Refer to Section 16521, "Exterior Lighting Units", for requirements
    concerning exterior area lighting.