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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.
Aluminum Integral Web IWBC
Mechanical properties of Aluminum Bus Conductors
Welding Aluminum Bus to Aluminum Connectors