Silver-plated copper conductor three-layer insulation stranded wire

The invention relates to a silver-plated copper conductor three-layer insulation stranded wire comprising a plurality of copper conductor stranded wires and an insulation layer wrapped around the outer sides of the stranded wires, wherein the copper conductor stranded wires are oxygen-free annealed copper wires of which the surfaces are plated with silver layers, the insulation layer consists of two polyester insulation layers and one polyamide resin insulation layer, and the resin insulation layer is arranged between the two polyester insulation layers. Compared with technologies of the prior art, the silver-plated copper conductor three-layer insulation stranded wire is strong in electric conductivity, sectional area can be reduced in an equivalent way, and therefore the silver-plated copper conductor three-layer insulation stranded wire is enabled to be small in external diameter and weight, and high in space-saving performance; the silver-plated copper conductor three-layer insulation stranded wire is hig