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    XHHW-2 Aluminum Conductor

    Product Description:

    The XHHW-2 Aluminum Conductor is a compact stranded Alumaflex ® aluminum alloy conductor jacketed in a cross-linked polyethylene insulation.  This cable is resistant to excessive heat, sunlight, and moisture.  The conductor can carry up to 600 volts.


    This conductor is primarily used as a power distribution cable.  The conductor is most commonly used within an electrical raceway such as conduit.  Conduit is a tube or trough that channels the wiring, protecting it from interference that might occur from weather or other obstacles.  In accordance with NEC specifications section 517.160, this conductor is approved for use in an isolated power system like those used in healthcare facilities.  Isolation power systems are preferred in healthcare and medical buildings because the system does not need to be reset if a phase-to-fault situation occurs.  This cable can be installed in a wide range of climates as its cross-linked polyethylene jacket allows it to function efficiently in excessively dry or moist conditions and in high heat up to 90°C.


    • In accordance with standards set forth by Underwriters Laboratories (UL), a regulations and compliance organization established over 100 years ago, this product meets standard 44 for thermoset-insulated conductors.  The insulation used on this product is a prepolymer, rubber or plastic-like coating that protects the conductors from excessive moisture, heat, and dryness.
    • In accordance with standards set forth by the American Society for Testing and Materials, this cable meets standards B 800. This specification monitors the components of the alloy used in the conductor, which contains aluminum, copper, silicon, iron, boron, magnesium, and zinc.


    • Conductors

    -                This product uses Alumaflex ® aluminum alloy conductors to provide the conductivity and resistance to corrosion you would find in an aluminum conductor, with added strength of mixed alloy metals.   

    • Stranding

    -           The conductors in this cable are compact stranded.  Compact stranding reduces the diameter of the conductors, making the cable more maneuverable. 

    • Insulation

    -           Aluminum alloy conductors are insulated in a black crosslinked polyethylene jacket.  The insulation protects the conductors from excessive heat and moisture, abrasion, and corrosion due to sunlight.  The jacket is a low-friction material which eliminate the need for lubricant during the pulling process.

    Conductor Insul. Thick. (mils) Nominal O.D. (mils) Allowable Ampacity
    Approx. Net Weight
    Per 1000 (lbs)
    Size (AWG or kcmil) No. Strands 60 °C 75 °C 90 °C
    6 7 45 262 40 50 60 42
    4 7 45 306 55 65 75 58
    2 7 45 361 75 90 100 86
    1 18 55 412 85 100 115 110
    1/0 10 55 449 100 120 135 134
    2/0 18 55 489 115 135 150 163
    3/0 18 55 536 130 155 175 200
    4/0 18 55 588 150 180 205 247
    250 22 65 653 170 205 230 296
    300 35 65 703 190 230 255 349
    350 35 65 749 210 250 280 401
    400 35 65 792 225 270 305 452
    500 35 65 869 260 310 350 556
    600 58 80 976 285 340 385 679
    700 58 80 1040 310 375 420 782
    750 58 80 1071 320 385 435 833
    900 58 80 1162 355 425 480 987
    1000 58 80 1223 375 445 500 1090

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Aluminum Building Wire Info

Nassau Electrical carries a wide selection of Aluminum Building Wire. Please contact us with your Aluminum Building Wire request.

Aluminum has been used by many different utility companies since the early 1900s as a way to transmit electricity. Aluminum has some advantages to copper because it is lighter, cheaper and more flexible. Because of the rising copper price, electrical contractors are choosing aluminum building wire.

Aluminum Building wire now uses the 8000 alloy series. Building wire alloys are used for connection performances and stability. They are not used for overhead applications because mechanical characteristics are absent. Contractors, engineers and inspectors use low voltage feeders because it is much cheaper than copper. Even though aluminum conductors need to have a 50% greater area than copper to carry the same current aluminum building wire weighs half as much as copper. The aluminum building wire can be compacted down to having the same diameter as copper. Aluminum weighs less then copper therefore there is a lower pulling tension, which lowers the chances of ruining the insulation of the wire during installation.

Building wires are rated by the circuit voltage, temperature ratings, and environmental conditions such as, moisture and sunlight that they can be used. The amount of current that a wire safely transmits depends on the installation conditions.

Aluminum building wire has the ability to “cold-flow” under pressure which causes connections to get loose over time. Aluminum wire has a tendency to expand and contract more due to temperature which releases electrical connections causing them to fail. This can also create high resistance that can be a factor of fire risk.

When corrosion occurs it means that there has been a failure at aluminum connection. The National Bureau of Sta