SPEC 81206

28kV CU 100% TRXLPE LCT LLDPE Primary UD

Single Conductor, 280 Mils Tree Retardant Cross Linked Polyethylene, 100% Insulation Level, Longitudinally Corrugated Tape Shield, Linear Low Density Polyethylene (LLDPE) Jacket. Silicone Free

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Construction:

  1. Conductor:Moisture blocked class B compressed stranded soft drawn bare copper per ASTM B3 and ASTM B8 (Conductor moisture block optional and tinned copper per ASTM B33 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:280 Mils Tree Retardant Cross Linked Polyethylene 100% insulation level
  4. Insulation Shield:Strippable semi-conducting cross-linked copolymer
  5. Tape Shield:10 mils Longitudinally Corrugated Tape Shield
  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 B3 Standard Specification for Soft or Annealed Copper Wire
  • ASTM B8 Concentric-Lay-Stranded Copper Conductors
  • ASTM B33 Standard Specification for Tin-Coated Soft or Annealed Copper Wire
  • ICEA S-97-682 Standard for Shielded Utility Cable Rated for 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] CU 28000 VOLTS TRXLPE INSULATION 280 MILS -- (NESC) -- SOUTHWIRE {MMM} {YYYY} NON-CONDUCTING JACKET
    Table 1 – Weights and Measurements
    Stock NumberCond. SizeDiameter Over ConductorDiameter Over InsulationInsul. ThicknessDiameter Over Insulation ShieldJacket ThicknessApprox. ODApprox. WeightMin Bending RadiusMax Pull Tension*
    AWG/Kcmilinchinchmilinchmilinchlb/1000ftinchlb
    TBA1 (1)0.2890.8862800.946801.20683314.5670
    TBA1 (19)0.3220.9192800.979801.23986614.9670
    TBA1/0 (1)0.3250.9222800.982801.24291814.9845
    TBA1/0 (19)0.3620.9592801.019801.27995815.3845
    TBA2/0 (19)0.4051.0022801.062801.322106815.91065
    TBA3/0 (19)0.4561.0532801.113801.373120816.51342
    TBA4/0 (19)0.5121.1092801.169801.429137817.11693
    TBA250 (37)0.5581.1642801.224801.484153017.82000
    TBA350 (37)0.6611.2672801.327801.553194718.62800
    TBA500 (37)0.7891.3952801.455801.681249520.24000
    TBA750 (61)0.9681.5832801.6431101.929346823.16000
    TBA1000 (61)1.1171.7322801.7921102.078435224.98000
    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)0.1290.1610.0680.0520.2381.1520.444+j0.1680.162+j0.0523961.3175220
    1 (19)0.1290.1610.0640.0500.2531.2260.438+j0.1590.162+j0.0504078.5175220
    1/0 (1)0.1020.1280.0640.0500.2541.2320.405+j0.1590.129+j0.0504089.2200250
    1/0 (19)0.1020.1280.0600.0480.2711.3140.398+j0.1500.129+j0.0484220.6200250
    2/0 (19)0.0810.1010.0560.0470.2901.4080.364+j0.1410.102+j0.0474373.3230285
    3/0 (19)0.06420.0800.0520.0450.3131.5180.334+j0.1320.081+j0.0454554.4260325
    4/0 (19)0.0510.0640.0480.0440.3381.6390.310+j0.1220.065+j0.0444753.3300365
    250 (37)0.04310.0540.0450.0420.3621.7560.292+j0.1140.055+j0.0424948.6
    350 (37)0.03080.0390.0400.0400.4071.9750.263+j0.1010.040+j0.0405314.4390480
    500 (37)0.02160.0280.0350.0380.4632.2450.236+j0.0880.029+j0.0385769.0470575
    750 (61)0.01440.0190.0300.0360.5442.6390.208+j0.0730.021+j0.0366436.6585695
    1000 (61)0.01080.0150.0270.0350.6082.9500.190+j0.0640.017+j0.0356965.8670785
    * Calculations are based on three cables triplexed / tape 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 ShieldJacket ThicknessApprox. ODApprox. WeightMin Bending RadiusMax Pull Tension*
    AWG/Kcmilmmmmmmmmmmmmkg/kmmmnewton
    TBA1 (1)7.3422.507.1124.032.0330.631240368.302982
    TBA1 (19)8.1823.347.1124.872.0331.471289378.462982
    TBA1/0 (1)8.2523.427.1124.942.0331.551366378.463760
    TBA1/0 (19)9.1924.367.1125.882.0332.491426388.623760
    TBA2/0 (19)10.2925.457.1126.972.0333.581589403.864739
    TBA3/0 (19)11.5826.757.1128.272.0334.871798419.105972
    TBA4/0 (19)13.0028.177.1129.692.0336.302051434.347534
    TBA250 (37)14.1729.577.1131.092.0337.692277452.128900
    TBA350 (37)16.7932.187.1133.712.0339.452897472.4412460
    TBA500 (37)20.0435.437.1136.962.0342.703713513.0817800
    TBA750 (61)24.5940.217.1141.732.7949.005161586.7426700
    TBA1000 (61)28.3743.997.1145.522.7952.786476632.4635600
    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)0.42320.530.02070.17060.7813.77950.444+j0.1680.162+j0.0523961.3175220
    1 (19)0.42320.530.01950.16400.8304.02230.438+j0.1590.162+j0.0504078.5175220
    1/0 (1)0.33460.420.01950.16400.8334.04200.405+j0.1590.129+j0.0504089.2200250
    1/0 (19)0.33460.420.01830.15750.8894.31100.398+j0.1500.129+j0.0484220.6200250
    2/0 (19)0.26570.330.01710.15420.9514.61940.364+j0.1410.102+j0.0474373.3230285
    3/0 (19)0.21060.260.01580.14761.0274.98030.334+j0.1320.081+j0.0454554.4260325
    4/0 (19)0.16730.210.01460.14441.1095.37730.310+j0.1220.065+j0.0444753.3300365
    250 (37)0.14140.180.01370.13781.1885.76120.292+j0.1140.055+j0.0424948.6
    350 (37)0.10100.130.01220.13121.3356.47970.263+j0.1010.040+j0.0405314.4390480
    500 (37)0.07090.090.01070.12471.5197.36550.236+j0.0880.029+j0.0385769.0470575
    750 (61)0.04720.060.00910.11811.7858.65810.208+j0.0730.021+j0.0366436.6585695
    1000 (61)0.03540.050.00820.11481.9959.67850.190+j0.0640.017+j0.0356965.8670785
    * Calculations are based on three cables triplexed / tape 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