UL 1072
Standard for Medium-Voltage Power Cables

DETAILS
Edition Number:4SCC Approved:--
Edition Date:2006-06-30DOD Approved: --
Price Code:BANSI Approved: 2018-05-30
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover the shielded and nonshielded medium-voltage power cables that are described in Tables 1.1 (single-conductor) and 1.2 (multiple-conductor). Multiple-conductor cables may include one or more individually jacketed non-conductive optical-fiber members. These electrical and hybrid electrical and optical-fiber cables are for use (optical and electrical functions associated in the case of a hybrid cable) in accordance with Article 328 and other applicable parts of the National Electrical Code (NEC), ANSI/NFPA 70.


    1.1 revised September 19, 2007

    1.2 These cables have one or more stranded copper or aluminum conductors that are insulated with a solid, extruded dielectric. Cables that have a metal sheath or interlocked armor incorporate an effective grounding path. A grounding conductor is optional in other cables. Cables for direct burial are so marked and have an overall covering (see 1.4 for direct-burial cables that are not covered). Cables that are for use in cable trays generally are so marked (see 62.1 and 62.2). Cables that are sunlight-resistant generally are so marked (see 64.1 – 64.3). Cables that are marked “MV-90” or “MV-90 dry” have a maximum operating temperature of 90°C (194°F). Cables that are marked “MV-105” have a maximum operating temperature of 105°C (221°F) for use where design conditions require a maximum conductor temperature above 90°C (194°F). Cables that are marked “dry” have insulation for use only in dry locations. All other cables have insulation that is for use in both wet and dry locations. Multiple-conductor cables that include one or more optical-fiber members are surface marked to so indicate. Cables that are marked “oil resistant II” are for exposure to mineral oil at temperatures not in excess of 75°C (167°F). Cables that are marked “oil resistant I” are for exposure to mineral oil at temperatures not in excess of 60°C (140°F).

    1.3 A multiple-conductor Type MV cable that has a smooth (other than lead) or corrugated metal sheath or that has interlocked metal armor may be marked for use also as Type MC cable.

    1.4 This standard does not include requirements for cables with concentric neutral conductors. However, it is possible to have a single-conductor cable with a concentric neutral conductor manufactured in accordance with the requirements of other standards, that meets the requirements for jacketed single-conductor shielded cable in this standard.

    Table 1.1 - Single-conductor Type MV cables

    Voltage rating

    Size

    Use

    Insulation material

    Percent insulation level

    Insulation thicknesses

    Shield

    Overall covering

    8 AWG – 1000 kcmil

    90°C (194°F) dry

    XLPE or EPCV

    Column A Table 15.3

    nonshielded

    None

    2400

    90°C (194°F) dry

    XLPE, EPCV, DREP, or EP

    Column B Table 15.3

    nonshielded

    Nonconductive jacket Column B Table 27.20

    90°C (194°F) wet or dry

    XLPE, DREP, or EP

    Column C Table 15.3

    nonshielded

    Nonconductive jacket Column C Table 27.20

    5000

    8 AWG – 2000 kcmil

    90°C (194°F)

    or

    105°C (221°F)

    wet or dry

    XLPE, DREP, or EP

    100 or 133

    Table 15.1 or Table 15.2

    Shielded

    a

    8000

    6 AWG – 2000 kcmil

    90°C (194°F)

    or

    105°C (221°F)

    wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    Table 15.1 or Table 15.2

    Shielded

    a

    15000

    2 AWG – 2000 kcmil

    90°C (194°F)

    or

    105°C (221°F)

    wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    Table 15.1 or Table 15.2

    Shielded

    a

    25000

    1 AWG – 2000 kcmil

    90°C (194°F)

    or

    105°C (221°F)

    wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    Table 15.1 or Table 15.2

    Shielded

    a

    28000

    1 AWG – 2000 kcmil

    90°C (194°F)

    or

    105°C (221°F)

    wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    Table 15.1 or Table 15.2

    Shielded

    a

    35000

    1/0 AWG – 2000 kcmil

    90°C (194°F)

    or

    105°C (221°F)

    wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    Table 15.1 or Table 15.2

    Shielded

    a

    a The overall covering consists of one of the following (see Table 26.1 for complete descriptions):

    1) Conductive nonmetallic insulation covering (Table 17.3) as part of shielding, with or without nonmagnetic metal sheath or armor over conductive nonmetallic insulation covering as part of shielding, with or without supplementary non-conductive jacket (Table 29.1) over metal sheath or armor.

    2) Non-conductive jacket (Table 27.18) over shielding, with or without nonmagnetic metal sheath or armor over non-conductive jacket, with or without supplementary non-conductive jacket (Table 29.1) over metal sheath or armor.

    3) Nonmagnetic metal sheath or armor as part of shielding, with or without supplementary non-conductive jacket (Table 29.1) over metal sheath or armor.

    Table 1.2 - Multiple-conductor Type MV cables

    Voltage rating

    Circuit conductors

    Grounding conductor

    Overall covering

    Size

    Use

    Insulation material

    Percent insulation level

    Insulation thicknesses

    Shield

    Individual covering

    2400

    8 AWG – 1000 kcmil

    90°C (194°F) dry

    XLPE or EPCV

    Column A Table 15.3

    nonshielded

    None

    Optional Covered 23.1

    None – assembly of single-conductor cables

    90°C (194°F) dry

    XLPE, EPCV, DREP, or EP

    Column B Table 15.3

    nonshielded

    Non-conductive jacket Column B Table 27.20

    Optional Covered 23.1

    None – assembly of single-conductor cables

    90°C (194°F) wet or dry

    XLPE, DREP, or EP

    Column C Table 15.3

    nonshielded

    Non-conductive jacket Column C Table 27.20

    Optional Covered 23.1

    None – assembly of single-conductor cables

    90°C (194°F) or 105°C (221°F) wet or dry

    XLPE, DREP, or EP

    Column C Table 15.3

    nonshielded

    None or Non-conductive jacket (Table 19.1)

    Optional Bare 23.5

    Non-conductive jacket (Table 27.18)

    Required Bare 23.1

    Interlocked armor with or without Supple-mentary jacket

    May be required Bare 23.3 and 23.4

    Metal sheath with or without Supple-mentary jacket

    5000

    8 AWG – 2000 kcmil

    90°C (194°F) or 105°C (221°F)

    XLPE, DREP, or EP

    100

    Table 15.1, Table 15.2

    Shielded

    Non-conductive jacket (Table 27.18) over shield

    Optional Covered 23.1

    None

    Conductive nonmetallic insulation covering (Table 17.3) as part of shield

    Optional Covered 23.1

    None

    Metal sheath as part of shield with or without Supplementary jacket

    Optional Covered 23.1

    None

    8000

    6 AWG – 2000 kcmil

    90°C (194°F) or 105°C (221°F) wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    Table 15.1, Table 15.2

    Shielded

    None or Non-conductive jacket (Table 19.1)

    Optional Bare 23.5

    Non-conductive jacket (Table 27.18)

    Required Bare 23.1

    Interlocked armor with or without Supple-mentary jacket

    15000

    2 AWG – 2000 kcmil

    90°C (194°F) or 105°C (221°F) wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    May be required to Bare 23.3 and 23.4

    Metal sheath with or without Supple-mentary jacket

    Non-conductive jacket (Table 27.18) over shield

    Optional Covered 23.1

    None

    25000

    1 AWG – 2000 kcmil

    90°C (194°F) or 105°C (221°F) wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    Conductive nonmetallic insulation covering (Table 17.3) as part of shield

    Optional Covered 23.1

    None

    Metal sheath as part of shield with or without supplementary jacket

    Optional Covered 23.1

    None

    28000

    1 AWG – 2000 kcmil

    90°C (194°F) or 105°C (221°F) wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    Table 15.1, Table 15.2

    None or Non-conductive jacket (Table 19.1)

    Optional Bare 23.5

    Non-conductive jacket (Table 27.18)

    Required Bare 23.2

    Interlocked armor with or without Supple-mentary jacket

    May be required Bare 23.3 and 23.4

    Metal sheath with or without Supple-mentary jacket

    35000

    1/0 AWG – 2000 kcmil

    90°C (194°F) or 105°C (221°F) wet or dry

    XLPE, DREP, or EP

    100, 133, or 173

    Table 15.1, Table 15.2

    Shielded

    Non-conductive jacket (Table 27.18) over shield

    Optional Covered 23.1

    None

    Conductive nonmetallic insulation covering (Table 17.3) as part of shield

    Optional Covered 23.1

    None

    Metal sheath as part of shield with or without Supplementary jacket

    Optional Covered 23.1

    None

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Units of Measurement
          • 3 References
        • CONSTRUCTION
          • 4 Materials
          • 5 General
        • CONDUCTOR(S)
          • 6 Materials
          • 7 Resistance
          • 8 Conductor Diameter
          • 9 Stranding
          • 10 Strand Filler
          • 11 Metal Coating
          • 12 Joints
        • CONDUCTOR STRESS RELIEF (CONDUCTOR SHIELDING)
          • 13 Details
        • INSULATION
          • 14 Material, Application, and Centering
          • 15 Thicknesses
        • INSULATION SHIELDING
          • 16 General
          • 17 Conductive Nonmetallic Covering
          • 18 Nonmagnetic Metal Component
        • JACKET ON INDIVIDUAL CIRCUIT CONDUCTORS FOR MULTIPLE-CONDUCTOR CABLE
          • 19 Details
        • OPTICAL-FIBER MEMBER(S)
          • 20 Construction
        • ASSEMBLY OF MULTIPLE-CONDUCTOR CABLE
          • 21 Optical-Fiber Member(s)
          • 22 Circuit Conductors
          • 23 Grounding Conductor
          • 24 Fillers
          • 25 Assembly Covering
        • OVERALL COVERING(S)
          • 26 General
          • 27 Jacket
          • 28 Metal Covering
          • 29 Supplementary Jacket over Metal Covering
        • PERFORMANCE
          • 30 Test or Examination for Integrity and Continuity of Non-conductive Jacket Over Insulation Shielding or Over a Metal Sheath or Armor
          • 31 Physical Properties Tests
          • 32 Corrosion of Uncoated Copper Conductors
          • 33 Adhesion (Stripping-Tension) Test of Extruded Insulation Shielding
          • 34 Deformation Test of EPCV or XLPE Insulation
          • 35 Deformation Test of Non-conductive Thermoplastic Jackets
          • 36 Set of Non-conductive Thermoset Jackets
          • 37 Heat Shock Test of Non-conductive PVC and TPE Jackets
          • 38 Cold Bend Test of Complete Cable
          • 39 Cold-Impact Test
          • 40 Accelerated Water Absorption – Electrical Method – Tests of DREP, EP, and XLPE Insulations
          • 41 Room-Temperature Relative Permittivity and Power Factor Tests at Rated Voltage for EP, DREP, and XLPE Insulations on 8 – 35-kV Circuit Conductors
          • 42 Dry Electrical Test
          • 43 Environmental Cracking Test of Non-conductive PE Jacket
          • 44 Volume Resistivity of Conductive Conductor Shielding
          • 45 Relative Permittivity and Dielectric Withstand Stress of Extruded Nonconducting Conductor Stress Control
          • 46 Volume Resistivity of Insulation Shielding
          • 47 Specific Surface Resistivity of Nonshielded Single-Conductor Cable
          • 48 Alternative Tests for Resistance to Tracking of Nonshielded Dry-Locations 2400 V Single-Conductor Cable Insulated with EPCV or XLPE
          • 49 U-Bend Discharge Test of Nonshielded Single-Conductor Cable
          • 50 Copper Sulphate Test of Zinc Coating on Steel Strip for and from Steel Armor
          • 51 Weight of Zinc Coating on Steel Strip for Steel Armor
          • 52 Tension Test of Interlocked Armor
          • 53 Flexibility Test for Cable Having Interlocked Armor or a Smooth or Corrugated Metal Sheath
          • 54 Tightness of Armor or Metal Sheath
          • 55 Partial Discharge (Corona) Level of Each Circuit Conductor Having Insulation Shielding
            • 55.1 Requirement
            • 55.2 Definitions
            • 55.3 Test apparatus
            • 55.4 Calibration of test equipment
            • 55.5 Items to be tested
            • 55.6 Test procedure
          • 56 A-C Dielectric Withstand Test of Each Conductor Having Insulation Shielding
          • 57 A-C Dielectric Withstand Test of Each Nonshielded Conductor
          • 58 Partial Discharge (Corona) Resistance of DREP Insulation
            • 58.1 Requirement
            • 58.2 Method and apparatus
          • 59 Insulation Resistance of Each Conductor Having Insulation Shielding
          • 60 Insulation Resistance of Each Nonshielded Conductor
          • 61 Test Procedure for Determining the Multiplying-Factor Column for Adjusting Insulation Resistance
          • 62 Vertical-Tray Flame Test
          • 63 Limited Smoke Test
          • 64 Sunlight Resistance
          • 65 Hot Creep Tests
          • 66 Durability of Ink Printing
        • MARKINGS
          • 67 Intervals
          • 68 Color of Circuit Conductor(s)
          • 69 Identification of Conductive Nonmetallic Covering Portion of Insulation Shielding
          • 70 On or in the Cable
          • 71 Responsibility for the Insulated Conductors
          • 72 On the Tag, Reel, or Carton
          • 73 Marking of Direct-Burial Cable
          • 74 Date of Manufacture