Bus duct with protection function

The utility model relates to the field of power distribution equipment, in particular to a bus duct with a protection function, which comprises a bus duct shell, the outer sides of the two ends of the bus duct shell are detachably sleeved with protection shells of a rectangular hollow structure, when transportation is needed, a worker unscrews fastening nuts but does not separate from fastening bolts, and the protection shells are fixed on the bus duct shell. The connection relation between the protection shell and the bus duct shell is kept, the handle is pushed to drive the protection shell to move so as to wrap the conducting bar exposed outside the bus duct shell, and finally the fastening nut is screwed down, so that the conducting bar exposed outside the bus duct shell is protected. According to the utility model, the conductive bar is effectively prevented from deformation caused by external impact in the transportation process so as not to influence the subsequent connection and use among a plurality