Micro-nano gradient modified high-voltage overhead conductor for anti-icing and method of manufacturing same

A micro-nano gradient modified high-voltage overhead conductor for anti-icing, comprising an overhead conductor and a nano-scale modified layer applied on the surface of the overhead conductor;

• wherein the overhead conductor is formed by twisting a plurality of wires each surface of which has a micron-sized structure;
• wherein the wire has a circular cross-section, a square cross-section, or a special-shaped cross-section, and the special-shaped cross-section includes a trapezoidal cross-section and a Z-shaped cross-section, and the micron-sized structure on the surface of the wire is formed by sandblasting, anodizing, or nano-scale brushed embossing;
• wherein the micron-sized structure is composed of interconnected frames and a plurality of micropores each of which is enclosed by the frames, and each micropore is in the shape of inverted pyramids, honeycombs, inverted cones, or triangular pyramids, and an angle between each frame and the wire ranges from 110° to 130°, and the surface areas of the micropores account for more than 90% of the total surface area of the wire, and both the length and width of each micropore are 5-800 μm;
• wherein the micropores in the micron-sized structure serve as storage sites to provide a modification positions for the nano-scale modified layer, and the interconnected frames in the micron-sized structure endow the overhead conductor with enhanced resistance to friction, protecting the nano-scale modified layer from damage during wear;
• and the nano-scale modified layer enables the overhead conductor to reduce ice coating weight and decrease the binding force between the ice and the wire.