Power porcelain bottles are typically assembled using insulating components (such as porcelain pieces) and metal accessories (such as steel feet, iron caps, flanges, etc.), either bonded with adhesive or mechanically clamped. Insulators are widely used in power systems, generally serving as external insulation and operating under atmospheric conditions. They are necessary to support the external live conductors of overhead transmission lines, power plants, transformer stations, and various electrical equipment, ensuring they remain insulated from the ground (or grounding materials) or other conductors with differing potentials.