Insulators, typically composed of insulating components (such as porcelain or glass) and metallic accessories (like steel legs, iron caps, flanges, etc.), are assembled using adhesives or mechanical clips. Insulators are widely used in power systems, generally serving as external insulation, operating under atmospheric conditions. They are essential for supporting overhead transmission lines, generator and transformer substation busbars, as well as external live conductors of various electrical equipment, ensuring insulation from the ground (or grounding materials) or other conductors with differing potential differences.