CONSTRUCTION STANDARD SPECIFICATION

SECTION 16124

[MEDIUM VOLTAGE CABLES]{.underline}

Page

PART 1 - GENERAL

1.01 Summary [2](#summary)

1.02 References [2](#references)

1.03 Submittals [3](#submittals)

1.04 Quality Assurance [5](#quality-assurance)

PART 2 - PRODUCTS

2.01 General [8](#general-1)

2.02 Conductor [8](#conductor)

2.03 Conductor Shield (Strand Screen)
[8](#conductor-shield-strand-screen)

2.04 Insulation [9](#insulation)

2.05 Insulation Shield (Insulation Screen)
[10](#insulation-shield-insulation-screen)

2.06 Metal Tape Shield [11](#metal-tape-shield)

2.07 Jacket [11](#jacket)

2.08 Cable Dimensions [11](#cable-dimensions)

2.09 Packaging [11](#packaging)

2.10 Manufacturer [11](#manufacturer)

2.11 Cable Terminations [12](#cable-terminations)

2.12 Splices And Taps [12](#splices-and-taps)

2.13 Cable Identification Tags [13](#cable-identification-tags)

2.14 Fireproofing [13](#fireproofing)

PART 3 -- EXECUTION

3.01 Installation [14](#installation)

3.02 Cable Ends [15](#cable-ends)

3.03 Test And Records [15](#__RefHeading___Toc35058895)

APPENDIX A [17](#appendix-a)

APPENDIX B 23

**CONSTRUCTION STANDARD SPECIFICATION**

SECTION 16124

[MEDIUM VOLTAGE CABLES]{.underline}

# 

# GENERAL

## SUMMARY

A.  This specification includes medium voltage, and accessories for
    systems rated above 2001 volts to 15,000 volts.

## REFERENCES

A.  Association of Edison Illuminating Companies (AEIC)

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1.  CS8-00, Specification for Extruded Dielectric Shielded Power Cables
    rated 5 through 46 kV

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B.  American National Standards Institute/Institute of Electrical and
    Electronics Engineers (ANSI/IEEE)

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1.  C2, National Electrical Safety Code

2.  386, Standard for Separable Insulated Connector Systems for Power
    Distribution Systems Above 600V

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3.  404, Standard for Cable Joints for Use with Extruded Dielectric
    Cable Rated 5000V Through 46,000V and Cable Joints for Use with
    Laminated Dielectric Cable Rated 2500V Through 500,000V

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C.  American National Standards Institute/National Fire Protection
    Association (ANSI/NFPA)

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1.  70, National Electrical Code

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D.  American Society of Testing and Materials (ASTM)

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1.  B3, Standard Specification for Soft or Annealed Copper Wire

2.  B8, Standard Specification for Concentric Lay Stranded Copper
    Conductors, Hard, Medium Hard, or Soft

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E.  Institute of Electrical and Electronics Engineers (IEEE)

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1.  48, Standard Test Procedures and Requirements for High-Voltage
    Alternating-Current Cable Terminations

2.  592, Standard for Exposed Semiconducting Shields on High Voltage
    Cable Joints and Separable Insulated Connectors

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F.  Insulated Cable Engineers Association (ICEA)

    1.  S-93-639/NEMA WC74, Shielded Power Cable 5-46kV

    2.  S-97-682, Utility Shielded Power Cable rated 5-46kV

    3.  T-25-425, Guide for Establishing Stability of Volume Resistivity
        for Conducting Polymeric Components of Power Cables

G.  Underwriters Laboratories, Inc. (UL)

H.  1072, Medium-Voltage Solid Dielectric

## 

## SUBMITTALS

A.  Test Reports

    1.  Certified copies of production sampling and completed cable test
        reports described in Paragraph 1.04 above of this Specification
        shall be submitted prior to shipping cable and shall be a
        legible and coherent format. This data should include the X-Y
        plot of the partial discharge test per ICEA.

    2.  Test reports shall be in a legible and coherent format and
        reported in accordance with AEIC CS6.

B.  Catalogue Data: Submit catalogue data showing physical information,
    specifications used for manufacturing and materials used to
    manufacture cable.

C.  Submittal Data Shall Include:

    1.  Letter stating cable meets specification and the date of cable
        manufacture.

    2.  Conductor Size

    3.  Conductor Shield Materials

    4.  Conductor Shield Materials

    5.  Insulation Material

    6.  Insulation Thickness

    7.  Diameter Over Insulation

    8.  Insulation Semi-conductor Thickness

    9.  Insulation Semi-conductor Thickness

    10. Jacket Material

    11. Jacket Thickness

    12. Diameter of Cable

    13. Weights per Length of Cable

        D.  Certification of the Qualifications of Medium-Voltage Cable
            Installers: The Contractor shall have current New Mexico
            EL-1 and EE-98 licenses. The Contractor shall submit a
            certification of attendance to, and for the approval of, the
            Sandia Delegated Representative (SDR) which contains the
            names of the Personnel who have successfully completed
            course(s) as specified in Section 1.04F below on the
            splicing and termination of medium-voltage cables approved
            for installation under this contract. The certificate of
            attendance shall be current within five years of performing
            any cable terminations. Persons listed by the Contractor may
            be required to perform a dummy or practice splice and
            termination in the presence of the SDR before being approved
            as a qualified installer of medium-voltage cables. If that
            additional requirement is imposed, the SDR shall provide
            short sections of the approved types of cables along with
            the approved type of splice and termination kits, and
            detailed manufacturer's instruction for the proper splicing
            termination of the approved cable types. The certification
            shall be accompanied by satisfactory proof of the training
            and experience of persons listed by the contractor as cable
            installers.

## QUALITY ASSURANCE

A.  Cable furnished under this specification shall conform to the latest
    edition of Insulated Cable Engineers Association (ICEA S-93-639) or
    its successors, except as specifically modified herein.

B.  The completed cable shall meet or exceed all Insulated Cable
    Engineer\'s Association (ICEA), National Electrical Manufacturers
    Association (NEMA), and Association of Edison Illuminating Companies
    (AEIC) physical and electrical tests. Tests shall be performed and
    frequency of sampling shall be in accordance with the latest edition
    of ICEA S-93-639 except as modified herein. All tests required by
    this specification, AEIC and ICEA shall be performed.

C.  Cable shall be manufactured and tested using good care and
    workmanship.

D.  EPR insulated cable shall be manufactured by a dry or steam curing
    process.

E.  The conductor shield, the insulation, and the semiconducting
    insulation shield extrude in a triple tandem, dual tandem, or true
    triple process.

F.  All Contractors working on Sandia National Laboratories\' (SNL)
    high-voltage system shall require training on medium-voltage
    terminations.

    1.  Contractor personnel terminating 600 Amp 15 kV non-loadbreak
        T-splices and 200 Amp 15 kV loadbreak connectors shall attend a
        minimum of four (4) hours of a \"Hands-On\" training seminar
        conducted by an Elastimold factory representative. Each
        individual shall be required to participate in the termination
        of the above-mentioned connectors. The training shall consist of
        the following items:

        a.  General cable and stress relief theory.

            b.  The manufacturer\'s recommended method for cable
                preparation of 15 kV and 5 kV tape shield EPR cable.
                This shall include the recommended tools and products
                for cable preparation.

            c.  The manufacturer\'s recommended method for the
                installation of 20 MA and 30 MA ground adapters, and
                655CA cable adapters on a 15 kV tape shield EPR cable.

            d.  The manufacturer\'s recommended method for the crimping
                of the conductor contact. The manufacturer shall review
                all approved tools that shall be used to crimp the
                conductor contact.

            e.  The manufacturer\'s recommended method for installation
                of the 655 LR Connector.

            f.  The manufacturer\'s recommended method for installation
                of 650BIP basic insulating and deadend plugs. The
                recommended method for the installation of the 650CP
                connecting plug for the assembly of a two-way T-splice.
                The manufacturer shall review all recommended tools for
                this assembly.

            g.  Once a complete 600 Amp 655LR assembly has been
                terminated, the manufacturer shall suggest cable
                routing/positioning to prevent cable stress.

            h.  The manufacturer shall review the testing of a 600 Amp
                655LR through the capacitive test point.

            i.  The manufacturer\'s recommended method for the
                installation of 168LR connectors on to 15 kV and 5 kV
                tape shield EPR cable. This shall include the correct
                method for crimping the compression lug and tightening
                of the probe.

            j.  The manufacturer\'s recommended method for the insertion
                and removal of the 168 LR connector on to or from
                loadbreak bushing. Manufacturer shall review cable
                routing/positioning to prevent cable stress.

                2.  Each contractor personnel who terminates 15 kV 5630
                    Series Quick Term II Cold Shrink Terminations
                    connectors shall attend a minimum of four (4) hours
                    of a \"Hands-On\" training seminar conducted by a 3M
                    factory representative. Each individual shall be
                    required to participate in the termination of the
                    above-mentioned connector. The training shall
                    consist of the following items:

                    a.  General cable theory and stress relief theory.

                    b.  The manufacturer\'s recommended method for cable
                        preparation of 15 kV and 5 kV tape shield EPR
                        cable. This shall include the recommended tools
                        and products for cable preparation.

                    c.  The manufacturer\'s recommended method for the
                        installation of a 5630K Series Quick Term Cold
                        Shrink on to 15 kV tape shield EPR cable. This
                        shall include the proper installation of the
                        ground strap.

                    d.  The manufacturer\'s recommended method for the
                        crimping of the conductor lug. The manufacturer
                        shall review all approved tools that shall be
                        used to crimp the conductor contact.

                    e.  The manufacturer\'s recommended sealing method
                        at the ground strap and conductor lug.

                    f.  The manufacturer\'s suggested cable
                        routing/positioning to prevent undue cable
                        stress.

                        3.  Each contractor personnel who terminates 15
                            kV TFT-ESG Raychem Cold Shrink Terminations
                            connectors shall attend a minimum of
                            four (4) hours of a "Hands-On" training
                            seminar conducted by a Raychem factory
                            representative. Each individual shall be
                            required to participate in the termination
                            of the above-mentioned connector. The
                            training shall consist of the following
                            items:

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a.  General cable theory and stress relief theory.

b.  The manufacturer's recommended method for cable preparation of 15 kV
    and 5 kV tape shield EPR cable. This shall include the recommended
    tools and products for cable preparation.

c.  The manufacturer's recommended method for the installation of a
    TFT-E-SG Raychem Cold Shrink on to 15 kV tape shield EPR cable. This
    shall include the proper installation of the ground strap.

d.  The manufacturer's recommended method for the crimping of the
    conductor lug. The manufacturer shall review all approved tools that
    shall be used to crimp the conductor contact.

e.  The manufacturer's recommended sealing method at the ground strap
    and conductor lug.

f.  The manufacturer's suggested cable routing/positioning to prevent
    undue cable stress.

    4.  Each attendee shall receive a certificate showing successful
        completion of the training class. The date of attendance and
        instructor must be listed.

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a.  The Contractor shall be responsible for scheduling the training
    classes for each product manufacturer and for notifying SNL of the
    date(s).

b.  The Contractor shall be responsible for furnishing all necessary
    cable samples and manufacturer product for a complete assembly.

    G.  Production sampling tests shall be in accordance with ICEA
        S-93-639, ICEA S-97-682, and AEIC CS8.

    H.  AC Voltage Tests: Each factory reel length shall withstand AC
        voltage tests by the manufacturer at the factory in accordance
        with ICEA S-93-639.

# PRODUCTS

## 

## GENERAL

A.  All cable furnished shall be installed within 12 months of
    manufacture date. Labeling of cable shall be per NEMA and shall
    contain no less than the following information:

    1.  Name of Manufacturer

    2.  NEC Designation

B.  Cable shall be operated at 60 Hertz, single or three phase at system
    voltage of 5 kV or 15 kV. Suitable installations include in conduit
    for wet or dry location and in open air in sunlight.

## CONDUCTOR

A.  The conductor shall be Class B concentric lay stranding, uncoated
    copper in accordance with ASTM B3 and B8 and ICEA S-93-639 with the
    minimum number of wires noted below:

> Conductor Size Number
>
> [Range]{.underline} [of Strands]{.underline}
>
> 8 - 2 7
>
> 1 - 4/0 19
>
> 250 - 500 37
>
> 501 - 1000 61

B.  Conductor shall be free from moisture, corrosion and excessive
    drawing lubricant before conductor shielding is applied.

## CONDUCTOR SHIELD (STRAND SCREEN)

A.  The strand screen shall consist of an extruded semiconducting
    thermosetting compound applied over the conductor. It shall be of a
    material compatible with the thermal characteristics of this
    conductor metal and insulation, shall be uniformly and firmly bonded
    to the overlying insulation, and shall be free stripping from the
    conductor. A semiconducting tape may be applied between the
    conductor and the extruded conductor screen. Okonite EPR based
    semiconductor is an approved exception.

B.  The D-C volume resistivity of the extruded conductor shield shall
    not exceed 1000 meter-ohms at the maximum normal operating and
    emergency operating temperature accordance with ICEA Publication
    T-25-425.

C.  The extruded strand shield shall have a minimum elongation of 100%
    after an air oven test at 121°C for seven days and a brittleness
    temperature not warmer than   -10°C.

D.  The contact area between the insulation and conductor shield shall
    not exhibit projections or irregularities which extend from the
    cylindrical surface of the conductor shield by more than 5 mils
    (.127 mm) toward the insulation or 10 mils (.254 mm) away from the
    insulation.

## INSULATION

A.  Insulation shall conform to ICEA S-93-639 except as modified herein
    and shall be the following, or a prior approved equal:

    1.  The insulation shall be a high quality heat, moisture, ozone,
        and corona resistant high dielectric strength ethylene propylene
        rubber compound. It shall be contrasting in color from the
        extruded strand and insulation screens. It shall contain less
        than 5% polyethylene, and the ethylene content of the elastomer
        shall not exceed 72.5% by weight of ethylene to limit
        susceptibility to treeing.

    2.  Insulation shall be for use in wet or dry locations at conductor
        temperatures not exceeding 105°C for continuous operation, 140°C
        emergency overload conditions, and 250°C short circuit
        conditions.

B.  The insulation shall have a minimum and maximum thickness for a 133%
    insulation level as specified in Table II below:

> [TABLE II]{.underline}

+---------------+-----------------+-----------------+-----------------+
| Rated Circuit | Conductor       | Minimum         | Maximum         |
|               |                 |                 |                 |
| Voltage (kV)  | Size            | Insulation      | Insulation      |
|               |                 |                 |                 |
| [(Phase to    | [(AWG or        | [Thickness      | [Thickness      |
| Phase         | kcmi            | (mil            | (mil            |
| ]{.underline} | l)]{.underline} | s)]{.underline} | s)]{.underline} |
+---------------+-----------------+-----------------+-----------------+
| 5             | 8 - 1000        | 85 (2.16 mm)    | 120 (3.05 mm)   |
+---------------+-----------------+-----------------+-----------------+
| 8             | 6 - 1000        | 135 (3.43 mm)   | 170 (4.32 mm)   |
+---------------+-----------------+-----------------+-----------------+
| 15            | 2 - 1000        | 210 (5.33 mm)   | 250 (6.35 mm)   |
+---------------+-----------------+-----------------+-----------------+

C.  Insulation shall be homogeneous and free of gels or discolorations
    larger than 10 mils (.254 mm).

D.  The insulation shall meet or exceed the requirements of all tests
    specified in ICEA S-93-639.

E.  The interface between the insulation and insulation shield shall be
    free of contaminants larger than 4 mils. The insulation shall be
    free from contaminats, gels and agglomerates larger than 10 mils.

## 

## INSULATION SHIELD (INSULATION SCREEN)

A.  Insulation shield shall conform to ICEA S-93-639, except as modified
    herein.

B.  The insulation screen shall consist of an extruded, semiconducting
    thermosetting compound applied over and compatible with the
    insulation. It shall be of a material compatible with the thermal
    and chemical characteristics of the insulation and the overlaying
    metallic shield. Okonite EPR based semiconductor is an approved
    exception.

C.  The thickness with corresponding minimum and maximum points shall be
    as specified in Table III:

> [TABLE III]{.underline}

+--------------------------+--------------------+----------------------+
| [Calculated]{.underline} | [Insulation Shield | [Insulation Shield   |
|                          | Minimum Point      | Maximum Point        |
| [Minimum Diameter over   | Thic               | Thickness            |
| Insulation\              | kness]{.underline} | (mils)]{.underline}  |
| (inches)]{.underline}    |                    |                      |
+--------------------------+--------------------+----------------------+
| 0 - 1.000                | 24                 | 60                   |
+--------------------------+--------------------+----------------------+
| 1.001 - 1.500            | 32                 | 60                   |
+--------------------------+--------------------+----------------------+
| 1.501 - 2.000            | 40                 | 75                   |
+--------------------------+--------------------+----------------------+
| 2.001 & Larger           | 40                 | 90                   |
+--------------------------+--------------------+----------------------+

D.  The insulation shield shall not alter its physical or electrical
    properties from exposure to sunlight or the elements.

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1.  The extruded insulation shield shall have a minimum elongation of
    100% after an air oven test at 121°C for 7 days and a brittleness
    temperature not warmer than -30° C.

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E.  The D-C volume resistivity of the extruded insulation shield shall
    not exceed 75 meter-ohms at 90°C when tested in accordance with ICEA
    Publication T-25-425.

F.  The insulation shield shall be free stripping from the insulation,
    and the tension necessary to remove the extruded insulation shield
    shall be 3 to 24 pounds (to 10.886 Kg) at room temperature when
    tested in accordance with ICEA S-93-639.

G.  The contact area between the insulation and insulation shield shall
    not exhibit projections or irregularities, which into the insulation
    from the insulation shield more than 5 mils and into the insulation
    shield from the insulation more than 7 mils.

## METAL TAPE SHIELD

A.  Cable shall have a metal tape or metal tape with wire shield.

B.  A copper tape with nominal thickness of 0.005 inches (.127mm) shall
    be applied directly over the insulation shield. The tape shall be of
    suitable width and shall lap at least 12.5 percent of its width. The
    tape shall be free from burrs and, where jointed, shall be made
    electrically continuous. (If wire shield is used, it shall be
    mechanically and electrically comparable).

C.  Application of tape shield or wire shield shall not deform the
    insulation.

## 

## JACKET

A.  The jacket shall be black polyvinyl chloride compound meeting the
    requirements of ICEA S-93-639.

B.  The average thickness of the jacket shall be not less than the
    values specified in the following table. The minimum thickness of
    the jacket at any point shall be not less than 80 percent of the
    specified minimum average thickness.

> [TABLE IV]{.underline}
>
> Calculated Diameter of Cable Min. Thickness
>
> [under Jacket (inches)]{.underline} [of Jacket (mils)]{.underline}
>
> 0.700 and Smaller 55 (1.40mm)
>
> 0.701 - 1.500 70 (1.78mm)
>
> 1.501 - 2.500 100 (2.54mm)
>
> 2.501 and Larger 125 (3.17mm)

C.  Linear shrinkage of the jacket shall not exceed the linear shrinkage
    of the insulation.

D.  The jacket shall be sunlight resistant in accordance with the
    requirements of UL 1072.

## CABLE DIMENSIONS

A.  Cable dimensions shall be in accordance with ICEA S-97-682

B.  Diameters over insulation shall be in accordance with ICEA S-97-682.

## 

## PACKAGING

A.  The cable shall be placed on the shipping reel with both ends of
    cable accessible for proof testing in Appendix A. Ends of cable
    shall be sealed with weatherproof material prior to shipment.

## MANUFACTURER

A.  Primary EPR insulated power cables as manufactured by Okonite,
    Pirelli, and Southwire.

B.  The cable manufacturer shall have a minimum of 10 years proven and
    successful experience with the manufacturing of EPR insulated
    cables.

## CABLE TERMINATIONS

A.  Outdoor: Terminations that are exposed to the weather, such as riser
    poles.

    1.  Terminations of the shielded power cables shall be manufactured
        molded rubber terminations, IEEE 48, Class 1. Elastimold type
        35MTG or approved equal with the grounding device for the
        metallic shield (Elastimold Type 20 MA for metallic type shield)
        and NEMA 2-hole, long-barrel terminal connector. The connector
        shall be listed for copper/aluminum applications.

B.  Indoor: Terminations that are inside equipment or weatherproof
    compartments of outdoor equipment, such as transformers and
    switchgear.

    1.  Terminations of shielded power cables rated 15 kV or less shall
        be done with an IEEE Standard 48 Class 1 termination. It shall
        either be a one-piece design, where high-dielectric constant
        stress control is integrated within a skirted insulator made of
        silicone rubber, gray in color or provide for positive placement
        of the stress control with the installation of a stress patch.
        The termination shall not require heat or flame for
        installation. The terminations shall be 3M Brand 5630 K Series
        Quick Term II cold shrink Termination Kits or Raychem TFT-E-SG.
        Only a NEMA 2-hole, long-barrel terminal connector shall be
        used. The connector shall be listed for copper/aluminum
        applications.

C.  Cable terminations shall have voltage ratings of not less than
    15,000 volts (ungrounded neutral). The standard withstand test
    voltage of the completed terminations shall conform to IEEE Standard
    No. 48.

## 

## SPLICES AND TAPS

A.  Unless specified otherwise, all splices and taps shall be as per
    items A & B below. Only where hand-made splices are called out on
    the contract documents shall Item C apply.

B.  In manholes, splices for feeders shall only be 600 Amp non-loadbreak
    power distribution connectors. Approved manufactures are Elastimold
    Catalog #K655BLR and Cooper Catalog #SSPL625AX\* ( where \*-X is
    replaced by number of T-bodies). Order manufactures' corresponding
    cable adapter and compression connector sized per phase conductor.
    Elastimold or Cooper insulating plug, basic insulating plug and/or
    connecting plug shall be required for assembly. Manufacturer's
    approved tape shield adaptors are required.

C.  In above ground sectionalizing cabinets and below-grade pull boxes,
    splices shall be 200 Amp Elastimold 168LR-W\*X\*\* load-break
    connectors with test points mounted on Z-point load-break junction
    163J-Z. Order one 168LR-W\*X\*\* and one 20 MA-W\* grounding device
    per phase. The Z-point load-break junction is to be mounted on a
    universal mounting bracket with parking stands.

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1.  \* W is replaced by symbol per table in catalogue for insulation
    diameter. Size for cable supplied.

2.  \*\* X is replaced by symbol per table in catalogue for conductor
    size. Size for cable supplied.

3.  \*\*\* Z is number of circuits to be terminated on to load-break
    junction.

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D.  Handmade splices to cable may be handmade from tape kits 3M 5700
    series. Refer to manufacturer\'s catalogue selection guide for
    voltage, conductor size and type information for ordering. Reference
    drawings for application of handmade splices.

## CABLE IDENTIFICATION TAGS

A.  The cables shall have identification tags in manholes (at conduit
    entrances and splices) and at equipment terminations indicating
    feeder number and routing (Example: Routing: \"To MH-36", \"To
    SW0893-1B\". Feeder: \"3501\"). The tags shall be one (1) inch
    polypropylene plastic (Almetek EZH9) affixed to cables with plastic
    or nylon ties (see Figure 1, Appendix B).

B.  At underground riser poles where feeders make a transition from
    underground to overhead, the feeder number will be 2\" x 2\" (50.8
    mm x 50.8 mm) black letters on yellow background adhesive-backed
    numbers. These numbers shall be attached to an aluminum strip nailed
    to wood or banded to steel pole above the cable terminator bracket.

## FIREPROOFING

A.  Cables in manholes shall be fireproofed with one layer of one
    half-lapped 3M 77 tape applied and held in place with 3M 69 tape.
    The fireproofing tape shall completely cover each cable and
    hand-taped splice from duct entrance to duct exit. All three-phase
    cables shall be fireproofed together ending a minimum of 6 feet
    (1.829 mm) from the T-splice, and then individually wrapped up to
    the T-splice. Extend the fireproofing 1 inch into duct. The
    fireproofing tape shall extend 1 inch (minimum) onto the
    splice/T-connector body.

# 

# EXECUTION

## INSTALLATION

A.  All work on primary conductors shall be done only when such
    conductors and equipment are de-energized. Unless otherwise noted on
    drawings, or directed, any tie-ins or connections to existing
    utilities or equipment that necessitate interruptions shall be
    performed on Saturday or Sunday, without additional contract costs.
    The Contractor shall not interrupt any main electrical utility
    without a written request for an outage and a subsequent approval by
    Sandia National Laboratories/New Mexico (SNL/NM).

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1.  Written request for outages shall be submitted twenty-one (21)
    calendar days in advance of the outage date. This request will
    delineate the particular circuit or service interrupted and the
    approximate hours the utility shall be off.

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

3.  Phasing of reconnected feeders shall be identical to the existing
    phasing.

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B.  Install and terminate primary cables in accordance with the
    manufacturer\'s approved recommendations and tools suggestions. The
    conductors shall be free of kinks and twists, and all bends shall be
    formed with smooth radius not smaller than twelve times the diameter
    of the cable nor smaller than the minimum radius recommended by the
    manufacturer, whichever is greater. All 600 Amp and 200 Amp
    terminations shall be mounted to avoid any stress on the
    terminations.

C.  The two-hole cable connectors shall be crimped with only the
    manufacturer\'s approved tool recommendations.

D.  All cables in one conduit shall be pulled in together using a
    suitable patented grip on the conductors with a basket weave grip
    over the insulation, arranged so the stress of pulling is applied to
    the conductor and not the insulation.

E.  Use a swivel between the cable grip and pulling rope.

F.  Lubricate cables with Cablelube or Minnearallac cable pulling
    compound or the type approved by the cable manufacturer.

G.  Maximum pull tensions shall not exceed values recommended by the
    cable manufacturer or as specified on the drawings. Pulls shall be
    made in the directions shown on the plans.

H.  Install cables in manholes along wall as specified on drawing
    providing proper support. In manhole, route cables a minimum of 3/4
    of manhole perimeter.

I.  Cable shield shall be grounded with #6 bare copper to manhole ground
    at all terminations to provide permanent, low-resistance bond.

J.  After cables have been terminated or spliced and fireproofing tape
    applied, each cable shall have a spiral wrap of colored 1/2\" wide
    tape 3M #35 vinyl plastic applied over the fireproofing tape. Spiral
    wrap of colored tape shall be over the total length of cable, with
    maximum of 5-inch (127 mm) separation between spirals. The color
    coding is as follows:

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1.  2400 volt - No Colored Tape Required

2.  4160 volt - Red Tape (3M #10224)

3.  12470 volt - Blue Tape (3M #10240)

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K.  Seal all duct runs in manholes going inside buildings with a
    water-tight seal.

L.  Cables of the same circuit shall be identified by tags in manholes
    (at conduit entrances and T-splice) and entrances into equipment.
    Information on tags shall include: circuit number and routing
    (circuit number will be confirmed at the outage coordination
    meeting). Tags shall be installed on each cable after fireproofing
    (see Part 2.14).

M.  Cables of the same circuit shall have the phasing identified with
    color tape in manhole. Phase A with one wrap, Phase B with two
    wraps, Phase C with three wraps.

## 

## CABLE ENDS

A.  After cutting, if cable ends are not to be terminated in same
    working day cut, immediately protect cable ends from damage or
    moisture by sealing with cable caps and silicone sealant. Provide
    stress relief at all terminations. Provide correct phasing of the
    conductors of each circuit at all terminations. Provide proper
    connections of tape shield or tape shield and drain wire to ground.

    1.  TESTS AND RECORDS

```{=html}
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```
A.  Prior to energizing the cable, testing of the cable shall be
    performed in the presence of the Sandia Construction Observer (SCO)
    in accordance with Appendix A.

B.  Exposed ends of cable shall be prepared and cleaned prior to testing
    in order to minimize any leakage current.

C.  Cable circuit ends must be cleaned and guarded for personnel safety
    during cable testing. Circuits not under test in the immediate
    vicinity shall be grounded.

D.  Exposed circuit ends under test require a minimum separation from
    all elements not subjected to a test of 1 inch (25.4 mm) per 10 kV
    of test potential. After testing, cables shall be grounded for a
    minimum of 4 times (4X) as long as the test voltage was applied
    during the hi-potential tests to assure complete discharge.

E.  When all cable, splices and terminations have been tested in
    accordance with Appendix A, and test results have been accepted by
    the SCO, the cable system may be placed in service as per the outage
    procedure.

> END OF SECTION
>
> APPENDIXES TO SECTION 16124 ARE ATTACHED

# APPENDIX A

HIGH VOLTAGE D.C. TESTING

After the installation of the primary cables the contractor shall employ
an independent third part electrical testing firm to test cables per
this specification. The testing firm shall be a full member company of
the InterNational Electrical Testing Association (NETA). The testing
firm shall submit proof documenting membership.

> The electrical testing firm Contractor shall use calibrated test
> equipment for \"Hi-potting\" cables. The \"Hi-pot\" tests shall be
> performed at the times directed in this specification. The Contractor
> shall furnish all instruments and personnel required for the tests,
> and electrical power will be furnished to the contractor on an \"as is
> available\" basis; otherwise Contractor supplies generator. A Cable
> High Potential Test Certificate (blank form) will be furnished to the
> contractor. The contractor shall fill out the appropriate information
> on this form at the time of making the test for approval. The SDR
> shall file the form with the project file, and send a copy to Alarm
> Systems/High Voltage Electrical Section, Dept 10842-1. See attached
> Forms A through D at the end of this appendix.

APP1.01 TEST PROCEDURE

All medium voltage cables installed and existing cables spliced to the
new cables shall be tested as follows, using D.C. hi-potential. (Note:
This is not a grounding or switching procedure; see outage procedure for
grounding and switching sequence).

A.  Field Testing of New Cables After Installation: The cable shall be
    tested according to 1.01A after installation and installation of
    stress relief devices as in 1.01A. Both ends of the cable shall be
    isolated from air break switches, transformers, etc. Remove all
    grounds from cable to be \"hi-potted\". (Note: If conductors are
    left connected to the equipment, the hi-pot test shall not exceed
    the rating of the equipment). For cables terminated with a 200 Amp
    elbow connector, elbows shall be placed on an insulated parking
    bushing prior to test. For cables terminated with a 600 Amp T-splice
    connector, the T-splice shall be capped prior to test.

B.  Field Testing of New Cables Jointed to Existing Cable

    1.  After acceptance tests for new cables, rated at 5KV or 15KV,
        have been made and new cables are spliced to existing cables, a
        second test of the entire cable run, from termination to
        termination, shall be made. This is only applicable where an
        existing cable is introduced into the circuit.

    2.  The procedure for testing shall be the same as indicated in
        Paragraph 1.01 above, except that the test voltage will be
        reduced to the values indicated on the appropriate form.
        Appropriate records shall be made, as indicated on Forms A
        through D.

    ```{=html}
    <!-- -->
    ```
    3.  This test is also applicable for testing of existing 5 kV and 15
        kV rated cable where it is important to test the integrity of
        the cable.

```{=html}
<!-- -->
```
A.  Dissipation of the charge build-up on the conductors shall be
    allowed to drain off through the test set and voltmeter circuit.
    After the potential drops below 95% of the test value, the conductor
    shall be solidly grounded. The grounds shall be left on all
    conductors for a minimum of 4 times (4X) as long as the test voltage
    was applied during hi-potential tests and/or as long as someone is
    handling the conductors.

APP1.02 FAULTY CABLE

A.  Contractor Furnished: In the event that any new contractor-furnished
    cable fails to meet any of the above tests, the entire faulty cable
    shall be removed and new cable shall be installed and tested at no
    increase in the contract price.

+------------+----------+-------------------------+---+---------------+
| PREPARED   |          | SANDIA NATIONAL         |   | FORM A        |
| BY:        |          | LABORATORIES/           |   |               |
|            |          |                         |   |               |
|            |          | NEW MEXICO              |   |               |
+------------+----------+-------------------------+---+---------------+
| CHECKED    |          | CABLE HI POTENTIAL TEST |   | SPEC. NO.:    |
| BY:        |          |                         |   | 16124         |
+------------+----------+-------------------------+---+---------------+
| DATE:      | REV. B   | CERTIFICATE, 15KV CLASS |   | ELECTRICAL    |
|            |          |                         |   |               |
|            | 10/01    | NEW INSTALLATION        |   |               |
+------------+----------+-------------------------+---+---------------+

CONTRACT NO. DATE

CABLE OR DESIGNATION

LOCATION

CABLE SIZE

INSULATION AND JACKET TYPE LENGTH [FT]{.underline}

MAX. CURRENT AFTER 100% TEST VOLTAGE APPLIED

CABLE ACCEPTABLE NOT ACCEPTABLE

TEST CONDUCTED BY:

TEST WITNESSED BY:

REMARKS:

TEMPERATURE: °F WEATHER CONDITIONS:

15KV RATED, EPR, 133% INSULATION LEVEL, HI-POTENTIAL TEST FOR INITIAL

INSTALLATION TEST (NEW CABLE)

+--------+--------+--------+-------+------+---------------+----------+
| STEP   | V      | DU     | TIME  | M    | POLARIZATION  | = [STEP  |
|        | OLTAGE | RATION |       | ICRO | INDEX =       | 4]{.un   |
|        |        |        | E     |      |               | derline} |
|        | LEV    |        | LAPSE | AMPS |               |          |
|        | EL\*\* |        |       | \*   |               | STEP 9   |
+--------+--------+--------+-------+------+---------------+----------+
| 1      | 15 KV  | 1 Min. | 1     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 2      | 30 KV  | 1 Min. | 2     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 3      | 45 KV  | 1 Min. | 3     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 4      | 50 KV  | 1 Min. | 4     |      | \_\_\_\_      |          |
|        |        |        | Min.  |      | \_\_\_\_\_\_\ |          |
|        |        |        |       |      | _\_\_\_\_\_\_ |          |
+--------+--------+--------+-------+------+---------------+----------+
| 5      | 50 KV  | 1 Min. | 5     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 6      | 50 KV  | 1 Min. | 6     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 7      | 50 KV  | 1 Min. | 7     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 8      | 50 KV  | 1 Min. | 8     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 9      | 50 KV  | 1 Min. | 9     |      | \_\_\_\_      | \_\_\_\_ |
|        |        |        | Min.  |      | \_\_\_\_\_\_\ | \_\_\_\_ |
|        |        |        |       |      | _\_\_\_\_\_\_ | \_\_\_\_ |
|        |        |        |       |      | =             |          |
+--------+--------+--------+-------+------+---------------+----------+

\* READING AT END OF 1 MIN. DURATION PRIOR TO RAISING VOLTAGE TO NEXT
STEP.

\*\* BETWEEN EACH STEP RAISE VOLTAGE UNIFORMLY.

NOTE: STOP TEST IF CURRENT STEADILY INCREASES AT CONSTANT VOLTAGE.

POLARIZATION RESULTS:

IF 1.25 - 2.0 GOOD

IF BELOW 1.0 FAILURE

IF 1.0 - 1.25 MARGINAL

+------------+----------+-------------------------+---+---------------+
| PREPARED   |          | SANDIA NATIONAL         |   | FORM B        |
| BY:        |          | LABORATORIES/           |   |               |
|            |          |                         |   |               |
|            |          | NEW MEXICO              |   |               |
+------------+----------+-------------------------+---+---------------+
| CHECKED    |          | CABLE HI POTENTIAL TEST |   | SPEC. NO.:    |
| BY:        |          |                         |   | 16124         |
+------------+----------+-------------------------+---+---------------+
| DATE:      | REV. B   | CERTIFICATE, 15KV CLASS |   | ELECTRICAL    |
|            |          |                         |   |               |
|            | 10/01    | EXISTING INSTALLATION   |   |               |
+------------+----------+-------------------------+---+---------------+

CONTRACT NO. DATE

CABLE OR DESIGNATION

LOCATION

CABLE SIZE

INSULATION AND JACKET TYPE LENGTH [FT]{.underline}

MAX. CURRENT AFTER 100% TEST VOLTAGE APPLIED

CABLE ACCEPTABLE NOT ACCEPTABLE

TEST CONDUCTED BY:

TEST WITNESSED BY:

REMARKS:

TEMPERATURE: °F WEATHER CONDITIONS:

15KV RATED, EPR, 133% INSULATION LEVEL, HI-POTENTIAL TEST FOR EXISTING
CABLE AND FOR NEW CABLE SPLICED TO EXISTING CABLE.

+--------+--------+--------+-------+------+---------------+----------+
| STEP   | V      | DU     | TIME  | M    | POLARIZATION  | = [STEP  |
|        | OLTAGE | RATION |       | ICRO | INDEX =       | 2]{.un   |
|        |        |        | E     |      |               | derline} |
|        | LEV    |        | LAPSE | AMPS |               |          |
|        | EL\*\* |        |       | \*   |               | STEP 7   |
+--------+--------+--------+-------+------+---------------+----------+
| 1      | 15 KV  | 1 Min. | 1     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 2      | 22V    | 1 Min. | 2     |      | \_\_\_\_      |          |
|        |        |        | Min.  |      | \_\_\_\_\_\_\ |          |
|        |        |        |       |      | _\_\_\_\_\_\_ |          |
+--------+--------+--------+-------+------+---------------+----------+
| 3      | 22V    | 1 Min. | 3     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 4      | 22V    | 1 Min. | 4     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 5      | 22V    | 1 Min. | 5     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 6      | 22V    | 1 Min. | 6     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 7      | 22V    | 1 Min. | 7     |      | \_\_\_        | \_       |
|        |        |        | Min.  |      | \_\_\_\_\_\_\ | \_\_\_\_ |
|        |        |        |       |      | _\_\_\_\_\_\_ | \_\_\_\_ |
|        |        |        |       |      | =             | \_\_\_\_ |
+--------+--------+--------+-------+------+---------------+----------+

\* READING AT END OF 1 MIN. DURATION PRIOR TO RAISING VOLTAGE TO NEXT
STEP.

\*\* BETWEEN EACH STEP RAISE VOLTAGE UNIFORMLY.

NOTE: STOP TEST IF CURRENT STEADILY INCREASES AT CONSTANT VOLTAGE.

POLARIZATION RESULTS:

IF 1.25 - 2.0 GOOD

IF BELOW 1.0 FAILURE

IF 1.0 - 1.25 MARGINAL

+------------+----------+-------------------------+---+---------------+
| PREPARED   |          | SANDIA NATIONAL         |   | FORM C        |
| BY:        |          | LABORATORIES/           |   |               |
|            |          |                         |   |               |
|            |          | NEW MEXICO              |   |               |
+------------+----------+-------------------------+---+---------------+
| CHECKED    |          | CABLE HI POTENTIAL TEST |   | SPEC. NO.:    |
| BY:        |          |                         |   | 16124         |
+------------+----------+-------------------------+---+---------------+
| DATE:      | REV. B   | CERTIFICATE, 5KV CLASS  |   | ELECTRICAL    |
|            |          |                         |   |               |
|            | 10/01    | NEW INSTALLATION        |   |               |
+------------+----------+-------------------------+---+---------------+

CONTRACT NO. DATE

CABLE OR DESIGNATION

LOCATION

CABLE SIZE

INSULATION AND JACKET TYPE LENGTH [FT]{.underline}

MAX. CURRENT AFTER 100% TEST VOLTAGE APPLIED

CABLE ACCEPTABLE NOT ACCEPTABLE

TEST CONDUCTED BY:

TEST WITNESSED BY:

REMARKS:

TEMPERATURE: °F WEATHER CONDITIONS:

5KV CABLE, HI-POTENTIAL TEST FOR INITIAL INSTALLATION TEST (NEW CABLE)

+--------+--------+--------+-------+------+---------------+----------+
| STEP   | V      | DU     | TIME  | M    | POLARIZATION  | = [STEP  |
|        | OLTAGE | RATION |       | ICRO | INDEX =       | 5]{.un   |
|        |        |        | E     |      |               | derline} |
|        | LEV    |        | LAPSE | AMPS |               |          |
|        | EL\*\* |        |       | \*   |               | STEP 10  |
+--------+--------+--------+-------+------+---------------+----------+
| 1      | 5 KV   | 1 Min. | 1     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 2      | 10 KV  | 1 Min. | 2     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 3      | 15 KV  | 1 Min. | 3     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 4      | 20 KV  | 1 Min. | 4     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 5      | 25 KV  | 1 Min. | 5     |      | \_\_\_        |          |
|        |        |        | Min.  |      | \_\_\_\_\_\_\ |          |
|        |        |        |       |      | _\_\_\_\_\_\_ |          |
+--------+--------+--------+-------+------+---------------+----------+
| 6      | 25 KV  | 1 Min. | 6     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 7      | 25 KV  | 1 Min. | 7     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 8      | 25 KV  | 1 Min. | 8     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 9      | 25 KV  | 1 Min. | 9     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 10     | 25 KV  | 1 Min. | 10    |      | \_\_          | \_\_     |
|        |        |        | Min.  |      | \_\_\_\_\_\_\ | \_\_\_\_ |
|        |        |        |       |      | _\_\_\_\_\_\_ | \_\_\_\_ |
|        |        |        |       |      | =             | \_\_\_\_ |
+--------+--------+--------+-------+------+---------------+----------+
|        |        |        |       |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+

\* READING AT END OF 1 MIN. DURATION PRIOR TO RAISING VOLTAGE TO NEXT
STEP.

\*\* BETWEEN EACH STEP RAISE VOLTAGE UNIFORMLY.

NOTE: STOP TEST IF CURRENT STEADILY INCREASES AT CONSTANT VOLTAGE.

POLARIZATION RESULTS:

IF 1.25 - 2.0 GOOD

IF BELOW 1.0 FAILURE

IF 1.0 - 1.25 MARGINAL

+------------+----------+-------------------------+---+---------------+
| PREPARED   |          | SANDIA NATIONAL         |   | FORM D        |
| BY:        |          | LABORATORIES            |   |               |
|            |          |                         |   |               |
|            |          | FACILITIES DEPARTMENT   |   |               |
+------------+----------+-------------------------+---+---------------+
| CHECKED    |          | CABLE HI POTENTIAL TEST |   | SPEC. NO.:    |
| BY:        |          |                         |   | 16124         |
+------------+----------+-------------------------+---+---------------+
| DATE:      | REV. B   | CERTIFICATE, 5KV CLASS  |   | ELECTRICAL    |
|            |          |                         |   |               |
|            | 10/01    | EXISTING INSTALLATION   |   |               |
+------------+----------+-------------------------+---+---------------+

CONTRACT NO. DATE

CABLE OR DESIGNATION

LOCATION

CABLE SIZE

INSULATION AND JACKET TYPE LENGTH [FT]{.underline}

MAX. CURRENT AFTER 100% TEST VOLTAGE APPLIED

CABLE ACCEPTABLE NOT ACCEPTABLE

TEST CONDUCTED BY:

TEST WITNESSED BY:

REMARKS:

TEMPERATURE: °F WEATHER CONDITIONS:

5 KV CABLE, HI-POTENTIAL TEST FOR EXISTING CABLE AND FOR NEW CABLE
SPLICED TO

EXISTING CABLE

+--------+--------+--------+-------+------+---------------+----------+
| STEP   | V      | DU     | TIME  | M    | POLARIZATION  | = [STEP  |
|        | OLTAGE | RATION |       | ICRO | INDEX =       | 2]{.un   |
|        |        |        | E     |      |               | derline} |
|        | LEV    |        | LAPSE | AMPS |               |          |
|        | EL\*\* |        |       | \*   |               | STEP 7   |
+--------+--------+--------+-------+------+---------------+----------+
| 1      | 5 KV   | 1 Min. | 1     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 2      | 8 KV   | 1 Min. | 2     |      | \_            |          |
|        |        |        | Min.  |      | \_\_\_\_\_\_\ |          |
|        |        |        |       |      | _\_\_\_\_\_\_ |          |
+--------+--------+--------+-------+------+---------------+----------+
| 3      | 8 KV   | 1 Min. | 3     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 4      | 8 KV   | 1 Min. | 4     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 5      | 8 KV   | 1 Min. | 5     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 6      | 8 KV   | 1 Min. | 6     |      |               |          |
|        |        |        | Min.  |      |               |          |
+--------+--------+--------+-------+------+---------------+----------+
| 7      | 8 KV   | 1 Min. | 7     |      | \_            | \_       |
|        |        |        | Min.  |      | \_\_\_\_\_\_\ | \_\_\_\_ |
|        |        |        |       |      | _\_\_\_\_\_\_ | \_\_\_\_ |
|        |        |        |       |      | =             | \_\_\_\_ |
+--------+--------+--------+-------+------+---------------+----------+

\* READING AT END OF 1 MIN. DURATION PRIOR TO RAISING VOLTAGE TO NEXT
STEP.

\*\* BETWEEN EACH STEP RAISE VOLTAGE UNIFORMLY.

NOTE: STOP TEST IF CURRENT STEADILY INCREASES AT CONSTANT VOLTAGE.

POLARIZATION RESULTS:

IF 1.25 - 2.0 GOOD

IF BELOW 1.0 FAILURE

IF 1.0 - 1.25 MARGINAL

![](media/image1.png){width="7.285416666666666in"
height="9.819444444444445in"}