ELECTRICAL SWITCHBOARD APPARATUS INCLUDING DOUBLE- FLANGED VERTICAL RISER CONDUCTORS

摘要

An electrical switchboard including a horizontal main supply bus and a vertical riser bus mounted within a cabinet structure. The conductors of the vertical riser bus include front and rear flanges connected by a web portion to form an I-shaped cross section. Line side stab connectors are mounted directly to the front flanges using bolts and press nuts seated in the front flange. Riser support members and load side extension support members are mounted upon the rear flanges.