All Aluminum Conductor/Trapezoidal Wire(AAC/TW)

All Aluminum Conductor/Trapezoidal Wire (AAC/TW)

Downloding AAC/TW spicification catologe

Applications

Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductor (AAC/TW) is designed for use as a bare overhead conductor. There are two designs of AAC/TW. One design gives an equal area of aluminum when compared to the standard AAC conductor sizes. The other design is conductor with overall outside diameters that are in fixed-increments. Use of this conductor in the equal area design allows equal ampacity in a smaller diameter conductor when compared with standard AAC conductor. Use of this conductor in the fixed-increment diameter design allows more ampacity in an equal diameter conductor when compared with standard AAC conductor.

Features and Advantages

AAC/TW has a continuous operating temperature rating of 75°C. Operation of the conductor at elevated temperatures may increase the conductor sag properties and lower the rated tensile strength of the conductor. AAC/TW conductors constructed of equivalent

aluminum circular mil cross-sectional area provide a conductor that is smaller in overall diameter than the equivalent conventional round wire AAC conductor. The reduced conductor diameter is advantageous in reducing the effects of ice and wind loading on the conductor. AAC/TW conductors constructed to equivalent overall diameter enable a greater circular mil crosssectional area of aluminum within the conductor allowing a significant increase in conductor current carrying capacity.

Structure

AAC/TW is a Trapezoidal 1350 H19 Aluminum (AAC) concentric-lay-stranded conductor. The aluminum strands are trapezoidal in shape. The wedge-shaped aluminum strands enable a more compact alignment of the aluminum wires. Conductor designs that maintain the same circular mil cross-sectional area of aluminum as a conventional round conductor result in a TW conductor that is 10 to 15 percent smaller in overall diameter. The conductor consists of two, three, four or five layers of aluminum 1350-H19 wires.

SPECIFICATIONS

Sim Noor Yazdan AAC/TW conductor meets or exceeds ASTM specification:

• B-778 Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors

(AAC/TW).