SPEC 81214

28kV CU 133% TRXLPE One-Third Neutral LLDPE Primary UD

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

...

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: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 one-third 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 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-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] CU 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)0.2891.0163451.0967x140.376501.32487215.9670
    TBA1 (19)0.3221.0493451.1497x140.376501.37793116.5670
    TBA1/0 (1)0.3251.0523451.1529x140.292501.380100516.6845
    TBA1/0 (19)0.3621.0893451.1899x140.292501.417105117.0845
    TBA2/0 (19)0.4051.1323451.23211x140.239501.460119017.51065
    TBA3/0 (19)0.4561.1833451.28314x140.188501.511137118.11342
    TBA4/0 (19)0.5121.2393451.33918x140.146501.567159418.81693
    TBA250 (37)0.5581.2943451.39421x140.125501.622178919.52000
    TBA350 (37)0.6611.3973451.49718x120.092801.817237021.82800
    TBA500 (37)0.7891.5253451.62517x100.061801.989315923.94000
    TBA750 (61)0.9681.7133451.84320x90.041802.232442226.86000
    TBA1000 (61)1.1171.8623451.99221x80.031802.409561528.98000
    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)0.1290.1610.0770.0540.2091.0140.451+j0.2000.162+j0.0542627.1180220
    1 (19)0.1290.1610.0730.0530.2221.0740.451+j0.1990.162+j0.0532627.1180220
    1/0 (1)0.1020.1280.0730.0520.2231.0800.377+j0.1480.129+j0.0523377.6200250
    1/0 (19)0.1020.1280.0680.0510.2371.1470.377+j0.1470.129+j0.0513377.6200250
    2/0 (19)0.0810.1010.0640.0490.2531.2250.317+j0.1140.102+j0.0494128.2230285
    3/0 (19)0.06420.0800.0600.0470.2711.3160.258+j0.0850.082+j0.0475254.1260325
    4/0 (19)0.0510.0640.0550.0460.2921.4150.208+j0.0650.066+j0.0456755.3300365
    250 (37)0.04310.0540.0520.0440.3121.5120.179+j0.0550.057+j0.0447881.2
    350 (37)0.03080.0390.0460.0430.3491.6920.134+j0.0440.043+j0.04210732.8390475
    500 (37)0.02160.0280.0410.0420.3941.9130.091+j0.0350.033+j0.03916113.0455555
    750 (61)0.01440.0190.0350.0400.4612.2350.062+j0.0290.026+j0.03523905.5545650
    1000 (61)0.01080.0150.0320.0380.5132.4890.047+j0.0260.022+j0.03231658.9
    * 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)7.3425.818.7627.847x141.231.2733.631298403.862982
    TBA1 (19)8.1826.648.7629.187x141.231.2734.981385419.102982
    TBA1/0 (1)8.2526.728.7629.269x140.961.2735.051496421.643760
    TBA1/0 (19)9.1927.668.7630.209x140.961.2735.991564431.803760
    TBA2/0 (19)10.2928.758.7631.2911x140.781.2737.081771444.504739
    TBA3/0 (19)11.5830.058.7632.5914x140.621.2738.382040459.745972
    TBA4/0 (19)13.0031.478.7634.0118x140.481.2739.802372477.527534
    TBA250 (37)14.1732.878.7635.4121x140.411.2741.202662495.308900
    TBA350 (37)16.7935.488.7638.0218x120.302.0346.153527553.7212460
    TBA500 (37)20.0438.738.7641.2817x100.202.0350.524701607.0617800
    TBA750 (61)24.5943.518.7646.8120x90.132.0356.696581680.7226700
    TBA1000 (61)28.3747.298.7650.6021x80.102.0361.198356734.0635600
    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)0.42320.530.02350.17720.6863.32680.451+j0.2000.162+j0.0542627.1180220
    1 (19)0.42320.530.02230.17390.7283.52360.451+j0.1990.162+j0.0532627.1180220
    1/0 (1)0.33460.420.02230.17060.7323.54330.377+j0.1480.129+j0.0523377.6200250
    1/0 (19)0.33460.420.02070.16730.7783.76310.377+j0.1470.129+j0.0513377.6200250
    2/0 (19)0.26570.330.01950.16080.8304.01900.317+j0.1140.102+j0.0494128.2230285
    3/0 (19)0.21060.260.01830.15420.8894.31760.258+j0.0850.082+j0.0475254.1260325
    4/0 (19)0.16730.210.01680.15090.9584.64240.208+j0.0650.066+j0.0456755.3300365
    250 (37)0.14140.180.01580.14441.0244.96060.179+j0.0550.057+j0.0447881.2
    350 (37)0.10100.130.01400.14111.1455.55120.134+j0.0440.043+j0.04210732.8390475
    500 (37)0.07090.090.01250.13781.2936.27620.091+j0.0350.033+j0.03916113.0455555
    750 (61)0.04720.060.01070.13121.5127.33270.062+j0.0290.026+j0.03523905.5545650
    1000 (61)0.03540.050.00980.12471.6838.16600.047+j0.0260.022+j0.03231658.9
    * 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