Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. system components
7. electrical system components

Anotations

Scope note:

Refers to the complete paths taken by electric currents flowing through conductors, usually wires, from one terminal of a generating source through energy-consuming units and returning through different conductors, usually wires, back to another terminal on the power source.