A floor system uses interlocking elements to form a surface raised above a floor surface for the distribution of electrical power and data throughout the floor of a building. The base units of the interlocking elements define channels which receive cables for data and power transmission. Channel and corner covers overlie the channels and interlock with the base units to form the raised surface. Fused electrical feed modules within channels provide electrical power to bus bars which distribute the power to fused terminal boxes and radio frequency sensors and beacons mounted in the base units.