Multi-core weather-proof overhead insulated cable

The utility model provides a multi-core weather-proof overhead insulated cable which comprises wire cores, and the plurality of wire cores are tangent in pairs and twisted with each other. The inner sheath is extruded on the outer wall of the wire core; the heat conduction strip is arranged on the outer wall of the inner sheath; the outer sheath is extruded on the outer walls of the inner sheath and the heat conduction strips; wherein the heat conduction strips extend along the axis direction of the cable, and the plurality of heat conduction strips are distributed on the outer wall of the inner sheath in a central symmetry manner and are embedded in the inner side of the outer sheath; the cable core is of a multilayer fan-arc-shaped (or approximately trapezoidal) stranded structure and is formed by seamless and tight staggered connection in a radial shape, mutual contact is tighter, transmission electric quantity loss is greatly reduced, the transmission rate of the cable can be increased, external interfere