Copper busbar processing is made of copper material, and the cross-section is a long conductor with a rectangular or chamfered (rounded) rectangle (the rounded copper busbar is generally used now to avoid discharge), which plays the role of conveying current and connecting electrical equipment in the circuit.  Copper busbar processing are used in electrical equipment, especially in complete power distribution devices; generally, copper bars are used for U, V, W phase busbars and PE busbars in power distribution cabinets; copper busbar factory are generally marked with phase in use. Color letter mark or painted with phase color paint, U-phase copper bar is painted with "yellow" color, V-phase copper busbar processing is painted with "green" color, W-phase copper busbar processing is painted with "red" color, PE busbar copper bar is painted with " Yellow and green" bicolor.