8546.10.00.00 - Of glass

This HTS category, 8546.10.00.00, specifically covers electrical insulators manufactured from glass. These articles are designed to prevent the flow of electricity and are essential components in a wide array of electrical systems, from power transmission and distribution to telecommunications and electronic devices. The defining characteristic for classification under this code is the material composition – primarily glass, which may be clear, colored, or frosted, and can be shaped into various forms such as bushings, pin-type insulators, or spool insulators.

This classification is distinct from its sibling categories primarily based on the material of construction. While 8546.20.00.00 covers insulators made of ceramics, and 8546.90.00.00 encompasses all other types not specifically mentioned, this heading is solely dedicated to those fabricated from glass. This differentiation is crucial for accurate tariff application, as different materials can have varying import duties and regulations.

As a leaf node within the HTS structure, 8546.10.00.00 does not have further subcategories. Therefore, the focus for classification here is on confirming that the article in question is indeed an electrical insulator and that its primary material is glass. Examples of goods falling under this code include glass strain insulators used in overhead power lines, glass stand-off insulators for mounting electrical components, and glass feed-through insulators for creating electrical connections through enclosures. The integrity of the glass, its insulating properties, and its intended use in electrical insulation are key considerations for classification.