CONSTRUCTION STANDARD SPECIFICATION

SECTION 16001

EE[ELECTRICAL WORK]{.underline}

[[PART 1 - GENERAL 2]{.underline}](#general)

[1.1. SUMMARY 2](#summary)

[1.2. DEFINITIONS 2](#definitions)

[1.3. SUBMITTALS 3](#submittals)

[1.4. QUALITY ASSURANCE 4](#quality-assurance)

PART [2 - PRODUCTS 4](#products)

[2.1. GENERAL 4](#general-1)

[2.2. CONDUIT AND TUBING 5](#conduit-and-tubing)

[2.3. CONDUCTORS 5](#conductors)

[2.4. OUTLET, JUNCTION, AND PULL BOXES
6](#outlet-junction-and-pull-boxes)

[2.5. WIRING DEVICES 7](#wiring-devices)

[2.6. SAFETY SWITCHES, DISCONNECTS, AND FUSES
7](#safety-switches-disconnects-and-fuses)

[2.7. CABINETS 8](#cabinets)

[2.8. GROUNDING AND BONDING 8](#grounding-and-bonding)

[2.9. MOTORS 9](#motors)

[2.10. MOTOR CONTROLLERS (STARTERS) 9](#motor-controllers-starters)

[2.11. LIGHTING FIXTURES 10](#lighting-fixtures)

[PART 3 - EXECUTION 10](#execution)

[3.01 INSTALLATION - GENERAL 10](#installation---general)

[3.02 REMOVALS AND DEMOLITION 11](#__RefHeading___Toc209260567)

[3.03 CONDUIT AND TUBING INSTALLATION
11](#conduit-and-tubing-installation)

[3.04 SUPPORTS/ANCHORS 14](#supportsanchors)

[3.05 CONDUCTORS 15](#conductors-1)

[3.06 OUTLET, JUNCTION/PULL BOXES 16](#__RefHeading___Toc209260571)

[3.07 WIRING DEVICES 17](#__RefHeading___Toc209260572)

[3.08 SAFETY SWITCHES 17](#__RefHeading___Toc209260573)

[3.09 CIRCUIT BREAKER SETTINGS FOR ADJUSTABLE-TRIP DEVICES
17](#__RefHeading___Toc209260574)

[3.10 CABINETS 18](#__RefHeading___Toc209260575)

[3.11 GROUNDING AND BONDING 18](#__RefHeading___Toc209260576)

[3.12 CUTTING AND PATCHING 19](#cutting-and-patching)

[3.13 PAINTING 19](#painting)

[3.14 INTERRUPTION OF ELECTRICAL UTILITIES
19](#interruption-of-electrical-utilities)

[3.15 TESTS AND INSPECTIONS 20](#tests-and-inspections)

[APPENDIX A - Electrical Circuit Request and Allocation Procedure
21](#appendix-a---electrical-circuit-request-and-allocation-procedure)

CONSTRUCTION STANDARD SPECIFICATION

SECTION 16001

E[ELECTRICAL WORK]{.underline}

# GENERAL

## SUMMARY

A.  Furnish all labor, materials, services, equipment and appliances to
    complete the installation of the complete electrical system in
    accordance with the specifications and Contract Drawings. The Work
    covered by this section of the specifications consists of performing
    all operations, including cutting, channeling, and chasing,
    necessary for the installation of the complete electrical system.

B.  Related Sections

    1.  Section 01065, "Environment, Safety, and Health for Construction
        Contracts".

    2.  Section 01330, "Submittal Procedures".

    3.  Section 09900, "Painting".

    4.  Section 13100, "Lightning Protection".

    5.  Section 16475, "Primary System Safety Requirements".

    6.  Section 16501, "Fluorescent Luminaires".

    7.  Section 16514, "Electrical High Intensity Discharge (HID)
        Luminaires and Lamps".

    8.  Section 16521, "Exterior Lighting Units".

    9.  Section 16742, "Intra-Building Telecommunications System".

C.  Related Drawings:

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1.  E-0006STD -- Standard Symbol List & General Notes.

## DEFINITIONS

A.  SCO -- Sandia Construction Observer

B.  SDR -- Sandia Delegated Representative

C.  Sandia/NM -- Sandia National Laboratories, New Mexico

D.  Accessible - Capable of being directly and safely reached (including
    standing properly on a ladder) and worked on by a craftsperson
    without removing or reaching over other items such as ceiling grid,
    light fixtures, mechanical equipment, etc. (Removal of ceiling tiles
    and opening accessways is expected.)

## SUBMITTALS

A.  Shop drawings shall be submitted where directed in Section 01330,
    "Submittal Procedures," and for all equipment furnished by
    Contractor with internal wiring and controls differing from Contract
    Drawings, or not shown on Contract Drawings.

    1.  [Note]{.underline}: Control wiring shall not be installed before
        these drawings have been submitted and approved.

B.  The following requirements are in addition to specific submittals
    for individual systems or equipment:

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1.  Except where specifically exempt by directions on Contract Drawings,
    electrical or electronic devices and assemblies shall be furnished
    with complete wiring diagrams, sequence of operation, and
    communication interfaces with other devices.

2.  Internal wiring shop drawings shall include complete elementary
    (ladder) type diagrams, plus complete wiring diagrams, showing
    wiring internal to the unit, in its relative location.

3.  Programmable electrical or electronic devices, assemblies, or
    equipment shall be furnished with complete instructions and
    accessories for programming the unit, along with documentation of
    the initial furnished program, communication protocol, and sequence
    of operation.

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C.  Shop drawings shall be required for any substituted equipment
    furnished by the Contractor which results in changes to control or
    power wiring as shown on Contract Drawings. This includes
    circumstances where substitute components, control schemes, or power
    wiring are presented and approved which cause a change in the:

    1.  Size, number, or type of wires.

    2.  Size of conduit and its routing.

    3.  Connection changes.

    4.  Sequence of operation.

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    E.  If any of the above changes occur, new shop drawings showing the
        following shall be submitted:

        1.  Elementary ladder diagram.

        2.  Conduit plan.

        3.  Wiring diagram.

        4.  Conduit identification schedule.

        5.  Sequence of operation.

    F.  Drawings shall include each diagram or plan of Contract Drawings
        that is affected.

        1.  Drawings shall be provided of the same size as the original
            construction drawings, and shall be reproducible copies.

        2.  If the changes are minor and Contractor chooses so to do, a
            print of the original Contract drawing may be made and
            changes noted thereupon for approval. This drawing shall
            become part of the as-built documentation submitted near the
            conclusion of the work.

    G.  Overcurrent Coordination: Where substitute overcurrent equipment
        and devices are proposed, Contractor shall be responsible for an
        overcurrent coordination study of all new equipment, including
        fuses, circuit breakers and overcurrent relays with other new
        and existing equipment.

## QUALITY ASSURANCE

A.  The latest version of the following industry specifications and
    standards shall form a part of this Section, to the extent
    applicable:

    1.  Insulated Cable Engineers Association (ICEA)

    2.  Underwriter\'s Laboratories, Inc. (UL)

    3.  National Fire Protection Association Standards (NFPA)

    4.  American National Standards Institute (ANSI)

    5.  National Electrical Manufacturers Association (NEMA)

    6.  International, national, state, and municipal Construction Codes
        as adopted, unless the Contract Documents specify a different
        Code is to be used.

    7.  Illumination Engineering Society of North America (IESNA)

    8.  National Electrical Installation Standards (NEIS)

B.  All Work performed in accordance with the above specifications shall
    be in strict compliance with OSHA regulation 29 CFR 1926 Subpart N.
    Particular attention is directed to \"Safety Related Work
    Practices\" 1926.416 and \"Lockout and Tagging of Circuits,\"
    1926.417.

# PRODUCTS

## 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 Metal Conduit (FMC): 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,
    compliant 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's 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 only 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 shall not be surface-mounted.

    3.  The cable's conductors shall be copper, minimum #12 AWG THHN,
        with green-insulated copper 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 three feet, except for luminaire whips.

## 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 nylon. High-impact
        (flexible) plates shall not be used.

    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 Industrial Specification Grade
    (Commercial Specification Grade not allowed) of the type shown on
    Standard Drawing E-0006STD, or as specifically described on the
    Drawings.

    1.  Building-mounted single- and multi-phase twist-lock and other
        special receptacles up to 50 amps per phase shall be chosen from
        approved NEMA configurations as shown on the Drawings.

    2.  Building-mounted multi-phase receptacles rated for more than 50
        amps per phase shall be of the pin-and-sleeve type, with a
        sleeve length sufficient to conceal the pins during make and
        break operation, and provided with a 15^o^ back box and hub.

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, single-faced
    B-grade or equal plywood backboard mounted inside and painted white,
    unless otherwise specified on Drawings.

C.  Cabinets shall have their identification letters shown on engraved
    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 grounding 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 bare conductors 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, normally will 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.

C.  Motors to be used with variable-frequency controllers shall be rated
    for such service, and shall have shaft grounding provisions so as to
    avoid induced-voltage arc damage to bearings and races.

## 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 shall 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
            shall 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.

        a.  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.

#  EXECUTION

## 3.01 INSTALLATION - GENERAL {#installation---general .unnumbered}

A.  No employer shall permit an employee to work in such proximity to
    any part of an electric power circuit that the employee could
    contact the electric power circuit in the course of work, unless the
    employee is protected against electric shock by de-energizing the
    circuit and grounding it or by guarding it effectively by insulation
    or other means.

B.  Fabrication, erection and installation per National Electrical
    Installation Standards and the complete electrical system shall be
    done in a first-class workmanlike manner by qualified personnel
    experienced in such work.

C.  Conduit and equipment shall be level, plumb and true with the
    structure and other equipment, and in a horizontal or vertical
    position as intended.

D.  The installation shall comply with all provisions of the National
    Electrical Code.

E.  All equipment requiring access for maintenance or for future cable
    installation, (including but not limited to Communications pull
    boxes) shall be installed at an accessible location in an accessible
    orientation. This placement shall be coordinated with all other
    construction disciplines to ensure accessibility. Hinged cover pull
    boxes shall be installed such that the hinged lid will open a
    minimum of 90 degrees, either through an opened ceiling grid or
    above the ceiling grid. In no case, however, shall the distance from
    the top of ceiling grid to the bottom of an open hinged pullbox
    cover exceed 12".

F.  Immediately prior to acceptance, Contractor shall clean all
    electrical equipment, both on the exterior and interior.

## REMOVALS AND DEMOLITION

A.  Unneeded electrical equipment, raceways, and conductors shall not be
    abandoned in place, unless specifically required on the Contract
    Drawings for future use.

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A.  Conductors specifically identified on the Drawings to remain shall
    be disconnected, identified, and capped at both ends. Under no
    circumstances shall an unused conductor remain energized.

B.  Circuits serving removed loads shall be removed back to the service
    equipment of the circuits' origin (switchgear, motor control center,
    or panelboard) as follows, unless specifically shown otherwise on
    the Drawings:

    1.  Remove all conduit, conductors, switches, controllers, and
        related electrical equipment from the removed load back to the
        service equipment point of origin. If a circuit serves multiple
        loads, remove the conduit, conductors, switches, controllers,
        and related electrical equipment dedicated to the removed load
        back to its interconnection with the circuit to remain.

    2.  If installed, remove all Facility Control System and
        telecommunications wiring and conduit from the removed load to
        the source (FCS FID cabinet or telecommunications drop).

    3.  Close the penetration of the service equipment and/or FID
        cabinets in accordance with NEC section 110.12(A).

    4.  Mark the FCS channel, panelboard circuit, or motor control
        center bucket as SPARE. Update the equipment labels and panel
        schedules appropriately.

    5.  Patch and paint all penetrations (including restoration of fire
        rating as necessary) and all anchor points for the removed
        conduit, conductors, switches, controllers, and related
        electrical equipment.

## CONDUIT AND TUBING INSTALLATION

A.  Conduit systems that are 2" or larger, installed outdoors, and
    terminate on an exterior enclosure that houses an overcurrent device
    (circuit breakers or fuses) shall enter through the side or bottom.

B.  Electrical metallic tubing (EMT) shall not be installed in concrete,
    underground, or through roof penetrations. EMT may be used on the
    exterior of buildings unless otherwise specified on the drawings.

    1.  EMT shall utilize UL-listed water-tight compression-type
        threadless fittings in outdoor applications.

    2.  EMT box connectors shall be securely fastened to all boxes and
        cabinets with one locknut.

C.  Rigid galvanized steel conduit (RGS) and intermediate metal conduit
    (IMC) shall be used where shown on Drawings, in outdoor locations,
    for roof penetrations, and where required to meet NEC requirements.
    For roof penetrations extend RGS and IMC a minimum of 12" above the
    roof membrane. Rigid and intermediate metal conduit shall be
    securely fastened to all boxes and cabinets with two galvanized
    locknuts and one bushing installed wrench tight.

D.  Polyvinyl Chloride (PVC) or other types of conduit may be used only
    where specified on Drawings.

    1\. When used underground but not under a building floor slab,
    provide minimum three inch concrete cover at bottom, four inch at
    top, and minimum of four to a maximum of six inch cover at sides of
    conduit or ductbank.

    2\. A mandrel 1/4\" - 3/8\" smaller than the conduit shall be pulled
    through each conduit. A circular wire brush the same diameter of the
    conduit then shall be pulled through the conduit.

    3\. Conduit stub-outs shall be RGS or IMC capped and not encased in
    concrete for future accessibility. Capping shall be installed to
    prevent moisture or debris from entering the duct system.

    [Note]{.underline}: All bends, except for communication and high
    voltage duct banks, shall be of steel, unless specified otherwise on
    Drawings.

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E.  Flexible conduit shall be used for terminal connections to all
    motors, inverters, and resilient-mounted equipment, and to other
    equipment where specified on Drawings, and then only to the extent
    of maximum lengths of three feet.

    1.  MC or AC cable shall not be used in lieu of flexible conduit
        when there is no other reason to splice the conductors.

    2.  .Provide liquid-tight flexible conduit in exterior, wet or damp
        locations, for connections to wet-pipe mechanical systems, or
        where specified on Drawings.

    3.  All installations in demountable metal partitions (Dowcraft,
        VMP) shall be run in flexible metallic conduit or MC cable to a
        junction box located above the panel.

F.  All EMT, IMC, and rigid conduit couplings shall be installed
    wrench-tight. Threads shall be brushed clean to ensure good
    electrical contact.

G.  Install insulating type bushings, designed to prevent abrasion of
    wires without impairing the continuity of the conduit grounding
    system, on rigid steel conduit, IMC and rigid aluminum conduit
    larger than 1/2-inch size.

    1.  Insulated bushings shall be installed on all raceways for
        conductors No. 4 and larger at the point of entry into gutters,
        cabinets, boxes, or motor control centers.

H.  Conduits and tubing shall be concealed within the walls, above
    ceilings, and under slab-on-grade floors where possible, as shown on
    Drawings. Maintain at least 6 inches distance from parallel runs of
    flues, steam pipes, or hot water pipes.

I.  Conduits concealed within interior walls shall be run vertically to
    the maximum extent possible, excepting only those instances where
    the architecture does not permit it (such as an expanse of
    contiguous windows with receptacles below).

J.  Conduit, cable, and tubing systems not normally requiring future
    maintenance nor which are anticipated to require ready access, and
    which are installed above lay-in ceilings, shall be installed as
    high as possible above the ceiling. Runs shall be parallel or
    perpendicular to walls, structural members, or intersections of
    vertical planes and ceilings, with right-angle turns consisting of
    cast-metal fittings or symmetrical, constant-radius bends.

K.  Exposed conduits shall be run parallel and perpendicular to the
    building surface of exposed structural members and follow the
    surface contours as much as practical to present a neat appearance.
    Exposed parallel or banked conduits shall be run together to provide
    neat appearance.

L.  Bends and Offsets shall be avoided where possible, but when
    necessary, shall be made with an approved hickey or conduit-bending
    machine. The use of a pipe tee or vise for bending conduit or tubing
    shall not be permitted. Only UL-listed PVC benders shall be used to
    bend PVC.

M.  Conduit or tubing which has been crushed, wrinkled, or deformed in
    any way shall not be installed.

N.  Each conduit that is buried in or rigidly secured to the building
    construction on opposite sides of a building expansion joint and
    each long run of exposed conduit that may be subjected to excessive
    stresses shall be provided with an expansion fitting suitable to the
    degree of expansion expected.

O.  Contractor shall exercise the necessary precautions to prevent the
    lodgment of dirt, plaster, or trash in conduit, tubing, fittings,
    and boxes during the course of installation.

    1.  Care shall be taken to ensure that raceways do not contain any
        type of debris.

    2.  A run of conduit or tubing, which has become clogged, shall be
        entirely freed of these accumulations, or shall be replaced.

P.  All empty conduits shall have a conduit measuring tape cord
    (Greenlee #435) provided with 2 feet of slack at each end, unless
    otherwise shown on plans.

Q.  Holes for conduit installation shall not be allowed in steel or
    reinforced concrete structural members unless approved by the Sandia
    Construction Observer (SCO).

R.  All underfloor or underground conduit runs shall be installed such
    that, as a minimum, the last thread is exposed at least ¼" above the
    finished floor including miscellaneous slabs, interior grade beams,
    finishes, and other portions of the floor.

S.  Conduit shall not be installed within a concrete slab.

T.  All conduit under building floor slabs shall be installed a minimum
    of 12 inches below the bottom of the slab, with a compacted fill
    between. The conduit run shall include a tracer wire suitable for
    locating the run under the finished slab.

U.  All steel conduits installed in direct contact with the earth shall
    receive a protective covering which shall be mechanically applied as
    hereinafter indicated.

    1.  One application, half-lapped, of Minnesota Mining and
        Manufacturing Company \"Scotchwrap\" No. 51, Plymouth Rubber Co.
        \"Plywrap 20\" or Westape, Inc. 20 mil Pipe Wrap, or equivalent,
        shall be applied. A \"Scotch Coat\" No. 101 pipe coating resin
        treatment, or equivalent, will also be accepted.

        a.  All elbows or bends shall have the wrap applied after the
            conduit is bent.

        b.  Fittings shall have two separate applications of Minnesota
            Mining and Manufacturing Company \"Scotchwrap\" No. 51,
            Plymouth Rubber Co. \"Plywrap 20\" or Westape, Inc. 20 mil
            Pipe Wrap, or equivalent, half lapped.

            2.  Conduit shall be not covered with backfill until the
                installation approval is obtained from the SCO.

V.  See Standard Drawing E-0006STD for conduit color coding
    requirements.

W.  Conduit or tubing risers shall be exposed in air shafts or ducts
    only when approved.

X.  Exposed lengths of conduit, containing medium voltage power
    conductors, and operating at more than 600 volts shall be rigid
    steel conduit. Paint two 1/2-inch wide red bands spaced 6 inches
    apart near each coupling, with the operating voltage stenciled in
    1/2 inch letters between the bands.

## SUPPORTS/ANCHORS

A.  Runs of conduit or tubing shall have supports spaced not more than 5
    feet apart, unless shown otherwise.

    1.  Conduit and tubing shall be supported on approved types of
        galvanized wall brackets, ceiling trapeze, strap hangers, or
        pipe straps, secured by means of toggle bolts on hollow masonry
        units, expansion bolts in concrete or brick, machine screws on
        metal surface, and wood screws on wood construction. Conduit and
        tubing shall not be hung from or attached to hanger support
        wires used for suspended ceilings, nor shall conduit and tubing
        be suspended from wires using friction clips such as "bat-wings"
        or similar.

    2.  Conduit and tubing risers exposed in utility shafts shall be
        supported at each floor level by means of approved U-clamp
        hangers.

    3.  Holes for electrical supports drilled in concrete but which are
        not used shall be properly filled with concrete grout.

    4.  The cutting of structural members for the installation of
        supports shall not be permitted, except by prior written
        approval from the SCO.

    5.  Conduit or conduit supports shall not be welded directly to
        steel structures.

    6.  Wooden plugs inserted in masonry or concrete shall not be used
        as a base to secure conduit supports.

    7.  Nails shall not be used as the means of fastening boxes or
        conduits.

    8.  Wire or perforated strapping shall not be used for the support
        of any conduit or tubing.

    9.  Conduits, conduit supports and associated boxes shall not be
        attached to roof joist bridging.

B.  All metal angles, channels, straps, and other similar pieces to be
    used to support electrical apparatus shall have all corners ground
    smooth and all edges filed or ground smooth before installation.

## CONDUCTORS

A.  Power conductors shall be continuous from outlet to outlet, and
    splices shall not be made except within outlet or junction boxes.
    (Junction boxes shall be utilized where required).

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1.  Requirements of NEC Articles 374.6 and 390.6 for splicing in
    underfloor raceways shall be strictly followed; however, under no
    circumstances shall conductors be \"looped\" or \"fed-through.\"

2.  Conductor color coding as per Standard Drawing E-0006STD shall be
    limited to all new installations unless otherwise specified on
    Drawings.

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B.  Except where approved by the SCO, splices shall not be allowed in
    control wiring nor in wiring to life-safety devices.

C.  Approved Splices and Terminations

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1.  For wiring below 600 volts, necessary splices may be made with
    insulated, screw-type connectors (Wirenuts^®^ or equivalent) except
    for conductors sized #8AWG and larger. For splices in conductors
    sized #8AWG or larger, and for those approved in any alarm,
    communication, or facility control system conductors, and for those
    in conductors serving vibrating or rotating machinery, permanent
    crimp-, bolt-, or solder-type connectors shall be used.

2.  All splicing connectors shall be furnished with an insulated cover
    that is equivalent to the conductor insulation (Taping alone is not
    acceptable). Split bolt connectors will only be allowed where
    specific approval for each use is obtained prior to use from the
    SCO.

3.  A connector aid compound shall be used at all splices to existing
    aluminum wire.

4.  Terminal lugs shall be used on all stranded conductors.

5.  A Belleville spring washer shall be used where existing aluminum
    terminals are connected to copper or steel terminals with steel
    bolts.

6.  Medium-voltage splices and terminations shall be as specified, or
    according to recommendations of wire supplier. Splices shall be made
    only in the presence of the SCO.

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D.  Conductor Identification

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1.  All conductors in panels shall be tagged, including neutral and
    ground conductors. Install a Bradey slip on label on conductors
    sized less than \# 6 AWG and install a Panduit #MP-350C tag and tie
    wrap on conductors sized \# 6 AWG or larger. Use a Panduit marking
    pen PX-O or a Sharpie permanent marker for labels. These tags shall
    list the circuit number.

2.  All conductors shall be additionally tagged in every box and
    cabinet, including device or fixture (lighting) outlet, and light
    fixture compartment, with Brady slip on labels. Wrap-around stick on
    labels are allowed only where slip-on labels cannot be used. These
    labels shall identify each conductor as to panel and circuit number
    or terminal numbers.

3.  Neutral and grounding conductors shall be similarly tagged as to all
    the circuits they serve in each box and at the panelboard.

4.  Computer rooms and all other areas where an isolated ground
    conductor is required shall have the ground conductor similarly
    identified (tagged) as to all the circuits they serve in each box.

5.  Box covers shall not be installed until approval has been obtained
    from the SCO for tagging at each box.

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E.  Provide UL-listed pulling compound for conductor pulling.

F.  Equipment used for pulling conductors shall be suited and listed for
    such use by the manufacturer.

G.  When used, MC and similar cable assemblies shall be installed per
    NEC Article 330. Where MC cable is concealed in walls, it must be
    run vertically to accessible ceiling, not horizontally through
    walls. MC cables may not be used for exposed surface applications,
    nor for panel feeders. Only the use of a manufacturer's approved
    tool shall be allowed to cut the cable. All such cables shall have a
    green insulated copper ground conductor; bare-metal and non-copper
    grounds shall not be used.

## 3.06 OUTLET, JUNCTION/PULL BOXES {#outlet-junctionpull-boxes .unnumbered}

A.  Boxes shall be installed in a rigid and satisfactory manner, either
    by wood screws on wood, expansion shields on concrete or filled
    masonry, or machine screws or self-tapping screws on steel work.

B.  Outlet Boxes

    1.  Outlet boxes shall be installed in the locations shown on
        Drawings.

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a.  Unless otherwise noted on the plans, the exact locations for outlets
    shall be obtained by scaling Drawings.

b.  Dimensions shall be taken from the nearest fixed portion of the
    building, such as a cross wall or column line, or other similar part
    of the structure.

    1.  Device Plates

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a.  Plates shall be installed with four edges in continuous contact with
    finished wall surfaces, without the use of mats or similar devices.

b.  Plates shall be installed vertically and with an alignment tolerance
    of 1/16 inch.

c.  Plates installed in wet locations shall be approved for that use.

d.  All receptacle device plates shall be labeled per Standard Drawing
    E-0006STD. Label to include panel and circuit number.

    1.  Relocations

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a.  If outlets are located improperly by more than 6 inches from the
    locations shown on the plans, they shall be removed and reinstalled
    in proper locations at no additional cost to Sandia.

b.  Contractor shall study the general building plans in relation to the
    spaces surrounding each outlet in order that his work may fit the
    Work required by these specifications.

c.  When necessary, Contractor shall relocate outlets so that when
    fixtures or other fittings are installed, they shall not interfere
    with other work or equipment.

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1)  When these relocations are required, the SCO will record this new
    location upon his record plan and on Contractor's plan in red
    pencil.

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2)  Contractor shall also initial and date both plans.

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d.  Junction/Pull Boxes for communication systems shall be installed per
    Section 16742, "Intra-Building Telecommunication System"

## 3.07 WIRING DEVICES {#wiring-devices-1 .unnumbered}

A.  Receptacles

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1.  All receptacles shall be installed as specified on Drawings and as
    per Standard Drawing E-0006STD.

2.  Not more than one conductor shall be installed under one receptacle
    termination point.

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B.  Wall Switches

    1.  All wall switches shall be installed as specified on Drawings
        and as per Standard Drawing E-0006STD.

    2.  Not more than two switches shall be installed in a single gang
        position of a switch box.

    3.  Not more than one conductor shall be installed under one
        termination point.

## 3.08 SAFETY SWITCHES {#safety-switches .unnumbered}

A.  Safety switches shall not be used as pull boxes or junction boxes,
    unless otherwise noted on Drawings.

B.  All safety switches shall have a label affixed per Standard Drawing
    E-0006STD. The label shall identify the circuit feeding the safety
    switch and the equipment served by the safety switch.

C.  Safety switches, fusible and non-fusible, shall be installed to
    comply with the minimum working clearance dimensions of NEC article
    110.26 and table 110.26 (A)(1).

## 3.09 CIRCUIT BREAKER SETTINGS FOR ADJUSTABLE-TRIP DEVICES {#circuit-breaker-settings-for-adjustable-trip-devices .unnumbered}

> The Contractor shall obtain the services of the device manufacturer to
> install or replace the trip plug of an electronic-trip circuit breaker
> if the existing plug rating does not match the coordination study. The
> NRTL listing and device warranty shall be preserved. The Contractor
> shall request the trip setting from the SDR a minimum of ten (10)
> working days prior to adjustment. The adjustment of the trip setting
> on electronic-trip circuit breakers and adjustable molded-case circuit
> breakers shall be the responsibility of the Contractor.

5.  []{#__RefHeading___Toc209260575 .anchor}CABINETS

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A.  Mount cabinets plumb and rigid without distortion of box.

B.  Arrange flush mounted cabinets so that the enclosure front surface
    is uniformly flush with wall, and exterior door covers wall to
    enclosure mating surfaces. Provide for future circuits as shown on
    Drawings.

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1.  If not shown on drawings, stub a minimum of four one-inch (25mm)
    empty conduits from cabinet into accessible ceiling space or space
    designated to be ceiling space in future.

2.  If not shown on Drawings, stub a minimum of four one-inch (25mm)
    empty conduits into raised floor space, or below slab other than
    slabs-on--grade.

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C.  All surface mounted cabinets located on finished walls within office
    and light laboratory areas shall be furred from the floor to the
    ceiling to provide a chase for conduits. The panels used for furring
    shall be removable by sheet metal screws or wood screw attachment or
    a similar method.

D.  If the cabinet is a Panelboard, Switchboard, Motor Control Center,
    or similar equipment with circuit switching and protection
    capabilities, install two paper copies of the appropriate
    SNL-template panel schedule in a sleeve inside the door or on the
    side of the cabinet. The schedule shall be an accurate
    representation of the final circuitry in the cabinet, complete with
    adjustable settings and equipment descriptions as are shown on the
    template, at the time of acceptance testing or commissioning.
    Download the current template from SNL's Engineering & Architectural
    Standards web site (<http://www.sandia.gov/engstds/forms.html>), and
    deliver the electronic copy to the SDR when the paper schedules are
    posted.

## 3.11 GROUNDING AND BONDING {#grounding-and-bonding-1 .unnumbered}

A.  Grounding and bonding shall comply with the NEC, and as shown on
    Drawings. Grounding and bonding shall also comply with the
    following:

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1.  UL 467 "Grounding and Bonding Equipment"

2.  Applicable IEEE Standards such as IEEE 142 "Recommended Practice for
    Grounding Industrial and Commercial Power Systems".

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B.  A grounding electrode shall include ground rods, driven exterior to
    the facility or as shown on Drawings.

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1.  Top of ground rods shall be driven to a minimum depth of 2 feet
    (0.61 m), unless noted otherwise. Locate ground rods a minimum of
    two-rod lengths from each other and at least the same distance from
    any other grounding electrode.

2.  Interconnect ground rods with bare grounding electrode conductors.
    Include a test well where shown.

3.  An equipment grounding conductor shall be run with circuit
    conductors from the point of a separately-derived service to the
    loads.

4.  See Standard Drawings E-0006STD, ES70001STD, and ES7002STD for
    additional grounding requirements.

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C.  Make connections in such a manner as to minimize possibility of
    galvanic action or electrolysis. Select connectors, connection
    hardware, conductors, and connection methods so metals in direct
    contact shall be galvanically compatible.

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1.  Use electroplated or hot-tin-coated materials to assure high
    conductivity, and make contact points closer in order of galvanic
    series.

2.  Make connections with clean bare metal at point of contact.

3.  Coat and seal connections involving dissimilar metals with inert
    material to prevent future penetration of moisture to contact
    surfaces.

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D.  Terminate insulated equipment grounding conductors for feeders and
    branch circuits with UL-approved grounding lugs. Where metallic
    raceways terminate at metallic housings without mechanical and
    electrical connection to the housing, terminate each conduit with a
    grounding bushing.

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1.  Connect grounding bushings with a bare grounding conductor to the
    ground bus in the housing.

2.  Bond electrically non-continuous conduits at both entrances and
    exits with grounding bushings and bare grounding conductors.

## 3.12 CUTTING AND PATCHING {#cutting-and-patching .unnumbered}

A.  Work shall be carefully laid out, in advance, and where cutting,
    channeling, chasing, or drilling of floors, wall partitions,
    ceiling, or other surfaces is necessary for the proper installation,
    support, or anchorage of the conduit, raceways, or other electrical
    work, the affected areas shall be repaired by skilled mechanics of
    the trades involved, at no additional Contract cost.

## 3.13 PAINTING {#painting .unnumbered}

A.  Electrical items shall be painted in accordance with requirements of
    Section 09900, "Painting."

## 3.14 INTERRUPTION OF ELECTRICAL UTILITIES {#interruption-of-electrical-utilities .unnumbered}

A.  Work to be performed during an interruption of electrical utilities
    shall be preceded by all possible preparation and shall be carefully
    coordinated to minimize the duration of the interruption and Work
    shall proceed continuously until the system is restored to normal.

B.  Contractor shall not interrupt any main interior or exterior
    electrical utility without written request for an outage and
    subsequent approval by SNL; nor shall the Contractor interrupt any
    branch circuit to an outlet or item of equipment without verbal
    approval from the SCO.

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1.  Written request for outages shall be submitted using the Outage
    Request Worksheet, according to the instructions and advance notice
    requirements on the Worksheet.

2.  Unless otherwise noted on Drawings, or directed, any tie-ins or
    connections to existing utilities or equipment that necessitate
    interruptions of service shall be performed on a Saturday or Sunday,
    without additional Contract costs.

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C.  Unless otherwise directed, the manipulation of existing main valves
    to isolate piping, the shutdown of fans, pumps, and other equipment
    will be done by Sandia/NM maintenance personnel.

## 3.15 TESTS AND INSPECTIONS {#tests-and-inspections .unnumbered}

A.  After the system installation is complete, and at such time as
    directed by the SCO, Contractor shall conduct an operating test for
    demonstration of completion of the work. This test may be in
    addition to and part of a formal system commissioning procedure, but
    shall not replace such commissioning event.

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A.  Electrical equipment shall not be energized prior to inspection by
    the SCO.

B.  Ceiling tiles shall not be installed prior to inspection by the SCO
    of any above-ceiling installed electrical equipment.

C.  When requested, Contractor shall test any designated wire, cable
    devices, and equipment after their installation, to assure that all
    of the material continues to possess all the original
    characteristics, as required by all governing codes and standards
    listed in these specifications.

D.  At the time of the operational testing, a complete set of as-built
    drawings shall be given to the SCO.

\- END OF SECTION --

# APPENDIX A - Electrical Circuit Request and Allocation Procedure

**[Purpose]{.underline}**

This Procedure shall be used to maintain accurate panel schedules and
evaluate work proposed for electrical panelboards, switchgear, and load
centers.

**[Scope]{.underline}**

This Procedure shall apply whenever a modification is proposed for an
existing electrical panel, such as the installation, removal, or
refeeding of a load. All work in electrical panels shall be coordinated
through the Sandia Designated Representative (SDR). A circuit request
shall be submitted to, and approved by, the cognizant Systems Engineer
(SE) prior to beginning construction. Availability of the circuits,
panel capacity, and phase balance shall be verified prior to beginning
construction.

**[Responsibilities]{.underline}**

**Design Engineer/Requestor**

-   Shall obtain a circuit assignment from the cognizant SE when
    submitting a design package for review.

-   Shall evaluate the proposed design for panel load capacity and phase
    balance.

**Construction Contractor**

-   Shall obtain a circuit assignment from the Design Engineer or SE
    prior to beginning construction.

-   Shall verify the circuit being requested is available and usable by
    visual inspection, and/or the circuit to be removed can be pulled
    from the panel (circuit breaker may or may not remain) (PPE shall be
    worn as required).

-   Shall request timely inspection of completed construction and
    verification of redlines by Construction Observer.

-   Shall return redlined panel schedule to SDR and SE within 24 hours
    after construction is complete.

-   Shall place two (2) copies of the final, updated panel schedule in
    the panel.

**Systems Engineer**

-   Shall review all requests and coordinate which circuits may be used.

-   Shall identify requested circuits in the Panel Schedule Database by
    using brackets and revision letters to identify reserved circuit.
    Expiration date and requester information shall be noted for future
    reference on the panel schedule.

-   Shall review redlined panel schedule, update the Panel Schedule
    Database, print two copies of the final panel schedule (with
    brackets and requestor information removed), and deliver same to the
    Requestor for placement in the panel.

-   Shall see that all relevant Drawings are updated as required.

**Construction Observer**

-   Verify work is complete and redlines are accurate prior to Requestor
    sending completed schedule to SE.

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