▎ 摘　　要

NOVELTY - Electrical device comprises a super water-repellent layer in contact with a substrate, including water-repellent repellent fibers constituting a mesh shape, where the water-repellent repellent fibers include a polymer fiber and three-dimensional microstructures bound to the surface. USE - Used as electrical device. ADVANTAGE - The electrical device has self-cleaning function to ensure a clear view at all times. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for manufacturing electrical device comprising preparing polymer solution, preparing microstructure dispersion solution, mixing the microstructure dispersion solution with the polymer solution to obtain a microstructure-polymer mixed solution, and electrospinning the microstructure-polymer mixture solution to obtain super water-repellent layer on the substrate.