Portable charging towers, namely, portable towers having AC electrical outlets and USB charging ports presented above desk height; power distribution hubs having electrical sockets and plug connectors; low voltage tabletop height power distribution hubs having electrical sockets and plug connectors; Portable, flexible, and movable electrical power distribution systems for use in office and classroom settings; wiring systems for over-floor power distribution composed of tracks having exposed electrical contacts; floor power systems and accessories therefor, namely, electrical raceways, electrical power controllers, electric wires and cables, power connectors, insulated electrical connectors, electrical connectors, and power distribution hubs having electrical sockets and plug connectors; medium voltage power distribution systems comprised of power tracks configured primarily for placement over floor coverings; electric raceways, namely, floor-mounted, low-profile raceway systems comprising electric raceways having a transition ramp and elongated electric rails; power connectors in the nature of modular connectivity power pickups for connecting to electric raceways along their length; power controllers for supplying electric power to electric raceways; electrical power extension cords in the nature of connection cords; electrical power extension cords in the nature of power pickup cords; low voltage tabletop power distribution hubs having electrical sockets and plug connectors