Non-armored medium-voltage fire-resistant cable

The utility model relates to the technical field of cables, and discloses a non-armored medium-voltage fire-resistant cable, which comprises a protective jacket, a plurality of leads are arranged in the protective jacket, two ends of the plurality of leads are sleeved with fixing bands for fixing the leads, the protective jacket consists of a protective inner layer, an isolating layer and a flame-retardant outer layer, the protective inner layer, the isolating layer and the flame-retardant outer layer are sequentially arranged from inside to outside, and a plurality of clamping columns are inserted into the isolating layer. According to the non-armored medium-voltage fire-resistant cable of the utility model, the clamping columns are embedded in the isolation layer, the positions of the clamping columns correspond to the positions of the wires, the clamping columns at the outer side are firstly pressed when the cable is extruded, and the clamping columns are made of silica gel materials, so that the cable has