ACDCTerminal: An electrical connection point (AC or DC) to a piece of conducting equipment.
ConductingEquipment: The parts of the AC power system that are designed to carry current or that are conductively connected through terminals.
Equipment: The parts of a power system that are physical devices, electronic or mechanical.
IdentifiedObject: This is a root class to provide common identification for all classes needing identification and naming attributes.
PowerSystemResource: A power system resource (PSR) can be an item of equipment such as a switch, an equipment container containing many individual items of equipment such as a substation, or an organisational entity such as sub-control area.
Terminal: An AC electrical connection point to a piece of conducting equipment.