Novel fireproof bus duct

The utility model discloses a novel fire-resistant bus duct, which comprises a fire-resistant shell and a fire-resistant bottom plate, the fire-resistant shell and the fire-resistant bottom plate are connected through screws, the interior of the fire-resistant bottom plate is fixedly connected with a main body conducting bar, and the front surface and the back surface of the fire-resistant shell are provided with heat dissipation windows. And two groups of guide rails are fixedly connected to the inner wall of the fire-resistant shell. According to the device, the heat dissipation windows are arranged on the fire-resistant shell, the heat dissipation requirement under the normal working condition is considered, the heat dissipation windows can be controlled according to feedback signals of the temperature sensor and the smoke sensor, and under the normal condition, the heat dissipation windows can be in an open state according to the reading of the temperature sensor; the internal temperature of the bus duct