Porcelain Suspension Insulators from Canada
High-voltage porcelain suspension insulators designed for suspending overhead power transmission lines, typically rated 69kV to 230kV. These ceramic insulators provide electrical insulation and mechanical support in low-frequency AC systems. Classified under 8546.20.00.30 as suspension-type ceramic insulators for high-voltage applications.
Duty Rate — Canada → United States
13%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• - Verify insulator strength rating (e.g
• 70kN, 120kN) matches technical specifications for customs valuation
• - Provide ANSI C29.2 or IEC 60383 certification to avoid reclassification as general ceramic ware
• - Common pitfall: Missing pollution performance data can trigger additional testing requirements