Electrical System
The integrated network of electrical distribution equipment, circuits, and controls that deliver power throughout a building.
Full Definition
An Electrical System is the integrated network of electrical distribution equipment (transformers, panelboards, switchboards), circuits, protective devices (circuit breakers, fuses), and controls that deliver electrical power from the utility service to loads throughout a building. Electrical systems are organized hierarchically: service entrance → main distribution → panelboards → branch circuits → loads. Systems include power distribution, lighting, emergency power, and low-voltage systems.
How It Works
Related Terms
Building System
A collection of interconnected components that perform a specific function in a building.
Transformer
An electrical device that transfers electrical energy between circuits by changing voltage levels.
Panelboard
An electrical distribution panel that houses circuit breakers and distributes power to building circuits.
Electrical Circuit
A closed loop path that allows electrical current to flow from a power source to loads and back.
Equipment
Physical assets like HVAC units, pumps, and electrical systems that are monitored and maintained.