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  • Single Conductor Aluminum Cable Type UD

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    The Single Conductor Aluminum Cable Type UD is primarily constructed of aluminum 1350-H19 for optimal electrical conductivity as well as corrosion-resistance.  The aluminum 1350-H19 components of this cable meet ASTM standards B231.  The Single Conductor Aluminum Cable Type UD cable can be customized with concentric-lay-stranded or compressed trapezoid wire to reduce the cable’s overall circumference.  The aluminum conductor comes with polyethylene insulation.  Polyethylene is a plastic compound that offers high heat and chemical-resistant properties.  The polyethylene insulation protects the cable from abrasion and corrosion. 

    This single conductor cable is designed as a secondary distribution cable and is most commonly used in residential areas. Secondary distribution occurs after power is distributed through a transformer and voltage is lowered to “utilization voltage”, a safe amount of voltage for household use.  The Single Conductor Aluminum Cable Type UD can handle up to 600 volts of secondary distribution.  The cable is designed for underground distribution, with its durable polyethylene insulation protecting it from underground obstacles that may pose a threat to the conductors. 

    Code Word Size (AWG or kcmil) Stranding Insul. Thick. (mils) Diameter (Inches) Weight Per 1000-feet (lbs.) Allowable Ampacities
    Bare Complete Cable Direct Burial In Ducts
    Princeton 6 7 60 .178 .298 44 90 65
    Mercer 4 7 60 .225 .345 63 120 85
    Clemson 2 7 60 .283 .403 92 155 115
    Kenyon 1 9 80 .313 .473 121 175 130
    Harvard 1/0 9 80 .352 .512 146 200 150
    Yale 2/0 11 80 .395 .555 177 225 170
    Tufts 3/0 17 80 .443 .603 215 250 195
    Beloit 4/0 18 80 .498 .658 263 290 225
    Hofstra 250 26 95 .542 .732 315 320 250
    Gonzaga 300 37 95 .594 .784 369 355 280
    Rutgers 350 37 95 .641 .831 422 385 305
    Emory 500 37 95 .790 .980 580 465 370
    Duke 600 61 110 .866 1.086 699 510 410
    Furman 700 61 110 .935 1.155 803 550 440
    Sewanee 750 61 110 .968 1.188 854 580 470
    Fordham 1000 61 110 1.117 1.337 1109 670 545

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