Hollow Glass Core Insulator for Switchgear
A hollow cylindrical glass insulator used as housing for high-voltage bushings in electrical switchgear and transformers. Falls under HTS 8546.10.00.00 for its glass construction providing high dielectric insulation in substation equipment.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If remains same unless porcelain substituted
Only material change to porcelain shifts to 8546.20; design stays electrical insulator.
If imported as plain glass tubing before electrical processing
Unfinished glass tubes for potential electrical use are basic glassware until processed.
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Import Tips & Compliance
• Submit partial discharge and impulse withstand voltage test reports
• Declare exact inner/outer dimensions for customs verification
• Avoid reclassification by excluding any pre-installed conductive end fittings
Related Products under HTS 8546.10.00.00
Glass Suspension Insulator for High-Voltage Power Lines
A toughened glass disc insulator designed for suspending overhead high-voltage transmission lines, providing electrical insulation between conductors and support structures. It falls under HTS 8546.10.00.00 as it is specifically made of glass for electrical insulation purposes in power distribution systems.
Glass Spool Insulator for Low-Voltage Lines
Small glass spool insulators used on low-voltage distribution lines and service drops for conductor support and insulation. Meets HTS 8546.10.00.00 criteria as molded glass electrical insulators for utility applications.
Glass Post Insulator for Substation Equipment
Solid glass post insulators supporting busbars and equipment in high-voltage substations. Falls under HTS 8546.10.00.00 as glass electrical insulators engineered for vertical compression loading in power facilities.
Toughened Glass Cap and Pin Insulator
Toughened glass cap and pin insulators for 11-33kV transmission lines using traditional suspension string configuration. HTS 8546.10.00.00 classification for glass construction preventing electrical tracking and flashover.
Glass Shackle Insulator for Rural Distribution
Glass shackle or egg insulators used in rural low-voltage distribution systems for dead-end strain applications. Qualifies for HTS 8546.10.00.00 as glass electrical insulators for anchor pole construction.
Long Rod Glass Insulator for Compact Lines
Long rod toughened glass insulators for compact overhead line designs requiring higher phase spacing. Classified HTS 8546.10.00.00 for glass dielectric properties in space-optimized transmission corridors.