An underground electrical concrete duct bank measuring one foot eight inches wide by one foot two and three-quarter inches high contains multiple conduits with specific spatial arrangements. The encasement houses two five-inch conduits at the bottom level, comprising a four point one six kilovolt generator feeder and a spare conduit, spaced with a three and one-half inch bottom clearance. The upper level contains four conduits consisting of two two-inch auxiliary power conduits and two two-inch controls and communication conduits, separated by typical three-inch spacings.
3" 3" (TYP) 1' - 8" 1' - 2 3/4" LEGEND: G = 5" 4.16kV GENERATOR FEEDER P = 2" 480V AUXILIARY POWER C = 2" CONTROLS/COMMUNICATION S = 5" SPARE G S C 3 1/2" C P P
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