A busbar is an arrangement of horizontal metal plates, colored in three ways – red, yellow, and blue. It takes three-phase input and is received in the plates. Wiring color codes are the wires' colors used to connect electrical devices and circuits. Note:- Different countries have different wiring color codes. 4 - Yellow-brown AC 3 - Dark Green AC 6 - Navy Blue AC 10 - Crimson AC 13. 8~20-Light green AC 35 - Light yellow AC 60 -. Busbar design in switchgear ensures safe, reliable power distribution by balancing current capacity, thermal performance, mechanical strength, insulation, and standards compliance. These busbars are not merely simple current conductors; they serve as the strategic backbone, interconnecting various components within the. A busbar is a metallic strip or bar (typically copper, brass or aluminium) that conducts electricity within a switchboard, distribution board, substation, battery bank, or other electrical apparatus to make a common connection between several circuits in a system. Busbar has only one bind property;. Select busbars according to the rated current of the switchgear to ensure that the busbars will not be damaged by overheating when operating at the rated current. Generally, refer to the busbar current - carrying capacity table and make corrections considering factors such as ambient temperature.