High-Voltage Porcelain Suspension Insulators from China
These ceramic suspension insulators are designed for supporting high-voltage overhead power transmission lines, typically rated 69kV or higher. Made from high-alumina porcelain, they provide electrical insulation and mechanical strength under extreme weather conditions. Classified under 8546.20.00.90 as ceramic electrical insulators not specified elsewhere in the subheading.
Duty Rate — China → United States
40.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify material certification confirming >50% ceramic content (porcelain) to avoid reclassification to glass insulators (8546.10)
• Include dielectric strength test reports (minimum 100kV) and mechanical load ratings in documentation