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Aluminum Integral Web (IWBC)


  • Only one-third the weight of copper
  • Highly corrosion resistant
  • Dissipates heat rapidly and evenly
  • Very strong yet lightweight
  • Easy to fabricate
  • Conducts equivalent loads of electric power with one-half as much material weight as copper


  • 6061-T6 alloy used in high strength applications
  • 6063-T6 alloy used in higher current carrying applications
  • Indoor or outdoor use
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Product Description

This shape is used for station bus, open or enclosed, and for the high-current bus of outdoor substations for distribution voltages, as well as for 600 volt bus for industrial plants. AFL offers the integral web bus conductor in both ventilated and non-ventilated conditions. The use of this shape makes it unnecessary to use the spacer clamps or welded tie-bars normally needed across the channels between insulator supports. Although convection airflow is less than that of a face-to-face channel arrangement, transverse strength is greater. The shallow grooves extruded on the surface facilitate location of the centers of drilled or punched holes for attaching base plates and taps.

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