A new isolated-phase metal-enclosed bus

THE DESIGN of bus runs for high capacity generating stations always has received considerable attention in order to insure freedom from faults of any type. A metal-enclosed nonventilated isolated-phase bus has been developed which combines a high degree of reliability with immediate accessibility for inspection or maintenance. By questioning operating, construction, and consulting engineers the following specifications were established to guide the development of the new design: 1. Ultimate design is to permit shipment of complete factory-assembled sections to reduce field installation time to a minimum.