Insulators, typically composed of insulating components (such as porcelain or glass pieces) and metal fittings (like steel feet, iron caps, flanges, etc.), are assembled using adhesives or mechanical clamps. Insulators are widely used in power systems, generally serving as external insulation and operating under atmospheric conditions. They are essential for supporting the live conductors on overhead transmission lines, generators, transformer stations, and various electrical equipment, ensuring they remain insulated from the ground (or grounding elements) or other conductors with differing potentials.