SPEC 81211

28kV AL 133% TRXLPE Full Neutral LLDPE Primary UD

Single Conductor, 345 Mils Tree Retardant Cross Linked Polyethylene, 133% Insulation Level, Full Concentric Neutral, Linear Low Density Polyethylene (LLDPE) Jacket. Silicone Free

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Construction:

  1. Conductor:Moisture blocked class B compressed Aluminum ASTM B231 1350 ¾ hard H16/H26 ( Non Moisture Blocked Optional )
  2. Conductor Shield:Conventional Semi-conducting cross-linked copolymer; Supersmooth conductor shield optional; A conductor tape is used for cable size larger than or equal to 1500 Kcmil
  3. Insulation:345 Mils Tree Retardant Cross Linked Polyethylene 133% insulation level
  4. Insulation Shield:Strippable semi-conducting cross-linked copolymer
  5. Concentric Neutral:Helically applied soft drawn bare copper full concentric neutral
  6. Overall Jacket:Linear Low Density Polyethylene (LLDPE) Jacket, black with red extruded stripes; PowerGlide® LLDPE jacket optional

Applications and Features:

Southwire's 28kV cables are suited for use in wet and dry areas, conduits, ducts, troughs, trays, direct burial, sunlight, and where superior electrical properties are desired. These cables are capable of operating continuously at the conductor temperature not in excess of 90°C for normal operation. 130°C for emergency overload, and 250°C for short circuit conditions. Jacket types available that can be installed in conduit without the aid of lubrication. Rated for 1000 lbs./FT maximum sidewall pressure.

Specifications:

  • ASTM B231 Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors
  • ASTM B609 Standard Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes
  • ICEA S-94-649 Standard for Concentric Neutral Cables Rated 5 - 46kV
  • AEIC CS-8 Specification for extruded dielectric shielded power cables rated for 5 through 46KV
  • UL 1072 Listed as MV 90 When Specified
  • Optional CSA: CSA 68.5 and -40C optional marking available upon request
  • Sample Print Legend:

    SOUTHWIRE HI-DRI(R) [CONDUCTOR SIZE] [AWG or KCMIL] AL 28000 VOLTS TRXLPE INSULATION 345 MILS -- (NESC) -- SOUTHWIRE {MMM} {YYYY} NON-CONDUCTING JACKET
    Table 1 – Weights and Measurements
    Stock NumberCond. SizeDiameter Over ConductorDiameter Over InsulationInsul. ThicknessDiameter Over Insulation ShieldConcentric NeutralNeutral DC Resistance 25°CJacket ThicknessApprox. ODApprox. WeightMin Bending RadiusMax Pull Tension*
    AWG/KcmilinchinchmilinchNo. x AWGΩ/1000ftmilinchlb/1000ftinchlb
    TBA1 (1)0.2891.0163451.09613x140.202501.32476215.9502
    TBA1 (19)0.3221.0493451.14913x140.202501.37781716.5502
    TBA1/0 (1)0.3251.0523451.15216x140.164501.38086116.6634
    TBA1/0 (19)0.3521.0793451.17916x140.164501.40788916.9634
    TBA2/0 (19)0.3951.1223451.22213x120.128501.482102917.8799
    TBA3/0 (19)0.4431.1703451.27016x120.104501.530115218.41007
    TBA4/0 (19)0.4981.2253451.32513x100.080501.629136219.51270
    TBA250 (37)0.5581.2943451.39416x100.065801.758161421.11500
    TBA350 (37)0.6611.3973451.49716x90.052801.886194722.62100
    All dimensions are nominal and subject to normal manufacturing tolerances
    ◊ Cable marked with this symbol is a standard stock item
    * Pulling tension based on pulling eye directly connected to conductor
    Table 2 – Electrical and Engineering Data
    Cond. SizeDC Resistance @ 25°CAC Resistance @ 90°CCapacitive Reactance @ 60HzInductive Reactance @ 60HzCharging CurrentDielectric LossZero Sequence Impedance*Positive Sequence Impedance*Short Circuit Current @ 30 CycleAllowable Ampacity in Duct 90°C†Allowable Ampacity Directly Buried 90°C‡
    AWG/KcmilΩ/1000ftΩ/1000ftMΩ*1000ftΩ/1000ftA/1000ftW/1000ftΩ/1000ftΩ/1000ftAmpAmpAmp
    1 (1)0.2110.2650.0770.0540.2091.0140.455+j0.0980.267+j0.0544878.8140175
    1 (19)0.2110.2650.0730.0530.2221.0740.455+j0.0970.267+j0.0524878.8140175
    1/0 (1)0.1680.2110.0730.0520.2231.0800.371+j0.0780.213+j0.0526004.7155195
    1/0 (19)0.1680.2110.0690.0510.2331.1290.371+j0.0770.213+j0.0516004.7155195
    2/0 (19)0.1330.1670.0650.0500.2491.2070.295+j0.0630.170+j0.0497751.5180225
    3/0 (19)0.1050.1320.0610.0480.2671.2930.238+j0.0530.135+j0.0479540.3205250
    4/0 (19)0.08360.1050.0560.0470.2871.3910.186+j0.0450.109+j0.04612321.7235285
    250 (37)0.07070.0890.0520.0460.3121.5120.156+j0.0390.094+j0.04415165.1
    350 (37)0.05050.0640.0460.0440.3491.6920.117+j0.0350.070+j0.04119124.4305370
    * Calculations are based on three cables triplexed / concentric shield / Conductor temperature of 90°C / Shield temperature of 45°C / Earth resistivity of 100 ohms-meter
    † Ampacities are based on Figure 7 of ICEA T-117-734 (Single circuit trefoil, 100% load factor, 90°C conductor temperature, earth RHO 90, 36" burial depth)
    ‡ Ampacities are based on Figure 1 of ICEA T-117-734 (Single circuit trefoil, 100% load factor, 90°C conductor temperature, earth RHO 90, 36" burial depth)
    Table 3 – Weights and Measurements (Metric)
    Stock NumberCond. SizeDiameter Over ConductorDiameter Over InsulationInsul. ThicknessDiameter Over Insulation ShieldConcentric NeutralNeutral DC Resistance 25°CJacket ThicknessApprox. ODApprox. WeightMin Bending RadiusMax Pull Tension*
    AWG/KcmilmmmmmmmmNo. x AWGΩ/kmmmmmkg/kmmmnewton
    TBA1 (1)7.3425.818.7627.8413x140.661.2733.631134403.862234
    TBA1 (19)8.1826.648.7629.1813x140.661.2734.981216419.102234
    TBA1/0 (1)8.2526.728.7629.2616x140.541.2735.051281421.642821
    TBA1/0 (19)8.9427.418.7629.9516x140.541.2735.741323429.262821
    TBA2/0 (19)10.0328.508.7631.0413x120.421.2737.641531452.123556
    TBA3/0 (19)11.2529.728.7632.2616x120.341.2738.861714467.364481
    TBA4/0 (19)12.6531.128.7633.6513x100.261.2741.382027495.305652
    TBA250 (37)14.1732.878.7635.4116x100.212.0344.652402535.946675
    TBA350 (37)16.7935.488.7638.0216x90.172.0347.902897574.049345
    All dimensions are nominal and subject to normal manufacturing tolerances
    ◊ Cable marked with this symbol is a standard stock item
    * Pulling tension based on pulling eye directly connected to conductor
    Table 4 – Electrical and Engineering Data (Metric)
    Cond. SizeDC Resistance @ 25°CAC Resistance @ 90°CCapacitive Reactance @ 60HzInductive Reactance @ 60HzCharging CurrentDielectric LossZero Sequence Impedance*Positive Sequence Impedance*Short Circuit Current @ 30 CycleAllowable Ampacity in Duct 90°C†Allowable Ampacity Directly Buried 90°C‡
    AWG/KcmilΩ/kmΩ/kmMΩ*kmΩ/kmA/kmW/kmΩ/1000ftΩ/1000ftAmpAmpAmp
    1 (1)0.69230.870.02350.17720.6863.32680.455+j0.0980.267+j0.0544878.8140175
    1 (19)0.69230.870.02230.17390.7283.52360.455+j0.0970.267+j0.0524878.8140175
    1/0 (1)0.55120.690.02230.17060.7323.54330.371+j0.0780.213+j0.0526004.7155195
    1/0 (19)0.55120.690.02100.16730.7643.70410.371+j0.0770.213+j0.0516004.7155195
    2/0 (19)0.43640.550.01980.16400.8173.96000.295+j0.0630.170+j0.0497751.5180225
    3/0 (19)0.34450.430.01860.15750.8764.24210.238+j0.0530.135+j0.0479540.3205250
    4/0 (19)0.27430.340.01710.15420.9424.56360.186+j0.0450.109+j0.04612321.7235285
    250 (37)0.23200.290.01580.15091.0244.96060.156+j0.0390.094+j0.04415165.1
    350 (37)0.16570.210.01400.14441.1455.55120.117+j0.0350.070+j0.04119124.4305370
    * Calculations are based on three cables triplexed / concentric shield / Conductor temperature of 90°C / Shield temperature of 45°C / Earth resistivity of 100 ohms-meter
    † Ampacities are based on Figure 7 of ICEA T-117-734 (Single circuit trefoil, 100% load factor, 90°C conductor temperature, earth RHO 90, 36" burial depth)
    ‡ Ampacities are based on Figure 1 of ICEA T-117-734 (Single circuit trefoil, 100% load factor, 90°C conductor temperature, earth RHO 90, 36" burial depth)

    Revision: 3.0.00C