Suspended insulators, typically composed of insulating components (such as porcelain or glass pieces) and metallic fittings (such as steel legs, iron caps, flanges, etc.), are either bonded with adhesive or mechanically clamped together. These insulators are widely used in power systems, generally serving as external insulation and operating under atmospheric conditions. They are essential for supporting the external conductors of overhead transmission lines, power plants, substation busbars, and various electrical equipment, ensuring insulation from the ground (or grounding materials) or other conductors with differing potential differences.