Water-blocking flame-retardant energy storage cable

The invention relates to the technical field of power transmission cables, in particular to a water-blocking flame-retardant energy storage cable, which comprises an insulating cable core, a water-blocking heat-conducting layer, a flame-retardant buffer layer and a sheath layer which are sequentially arranged from inside to outside, the insulating cable core comprises a central conductor formed by twisting a plurality of metal conductors, and an insulating layer and a fireproof isolating layer which are arranged on the outer side of the central conductor; the water-blocking heat-conducting layer comprises a plurality of hollow heat-conducting pipes arranged along the length direction of the insulating cable core, water-blocking fillers arranged among the plurality of heat-conducting pipes, and water-blocking wrapping tapes arranged on the outer sides of the water-blocking fillers and the heat-conducting pipes, and one side, attached to the insulating cable core, of each heat-conducting pipe is provided with a