Novel bus duct

The novel bus duct comprises a bus duct top plate and a bus duct bottom plate, the bus duct top plate and the bus duct bottom plate are distributed up and down, two bus duct side plates are arranged between the bus duct top plate and the bus duct bottom plate, the bus duct side plates are distributed left and right, and ventilation openings are formed in the centers of the side faces of the bus duct side plates. A wire A, a wire B, a wire C and a wire D are arranged between the bus duct side plates, the wire A, the wire B, the wire C and the wire D are distributed left and right, heat shrink tubes are fixed to the centers of the wire A, the wire B, the wire C and the wire D in a sleeving mode, insulators are arranged on the left sides of the heat shrink tubes, and mica tapes are arranged on the right sides of the heat shrink tubes. The insulators and the mica tapes are correspondingly fixed on the lead A, the lead B, the lead C and the lead D through sleeving. The bus duct top plate, the bus duct bottom plate