In electric power distribution, a busbar (also bus bar) is a metallic strip or bar, typically housed inside switchgear, panel boards, and busway enclosures for local high current power distribution, transmission, or switching substations. June 11, 2025 By Bill Schweber Leave a Comment Bus bars appear to be simple and low glamour in comparison to many other active and even passive components, and in some ways, they are. However, they are also sophisticated structures that require an understanding of voltage drop due to conductor. Definition: An electrical bus bar is defined as a conductor or a group of conductor used for collecting electric power from the incoming feeders and distributes them to the outgoing feeders. The choice of a particular arrangement depends upon various factors such as system voltage, position of sub-station, degree of reliability, cost etc.
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