Busbar

A busbar is a rigid conductor that collects and distributes electrical power among multiple circuits. Its low impedance and simple connections make it common in switchgear, substations, and electrical panels.

Electrical bus: A common electrical connection point linking multiple circuits or components. A busbar is the physical conductor that implements a shared electrical bus.
Copper: A ductile metal with high electrical and thermal conductivity. Copper busbars achieve high current capacity in compact spaces.
Switchgear: Equipment for switching, controlling, and protecting electrical power systems. Busbars form the internal power-distribution backbone of many switchgear assemblies.
Electrical cable: One or more insulated conductors enclosed in a protective sheath for transmitting electrical power or signals. Cables are flexible and easier to route, while busbars offer rigid, compact distribution.
Busbar trunking: An enclosed system of conductors and fittings that distributes power along a building or industrial site. It extends busbar distribution through modular lengths and plug-in connection points.
Aluminium: A lightweight metal that conducts electricity and forms a protective oxide layer. Aluminium busbars reduce weight and material cost compared with copper.
Electrical panel: An enclosure containing devices for distributing, switching, or protecting electrical circuits. Panels use busbars to feed multiple breakers from a common supply.
Overhead power line: An outdoor electrical conductor system carried above ground on poles or towers. Overhead lines transmit power across distance; busbars distribute it within installations.
Electrical impedance: The opposition a circuit presents to alternating current, combining resistance and reactance. Busbar impedance affects voltage drop and fault-current levels across connected circuits.
Electrical contact: A conductive interface between components through which electric current passes. Busbar joints depend on low-resistance contact across bolted or clamped surfaces.

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