Stator Winding Insulation Paper for Large AC Generators from China
High-voltage insulation paper specifically engineered for stator windings in AC generators rated ≥5 MVA under 8501.64.0110. It provides dielectric strength for high-temperature operation in wind power alternators. Classified in 8503.00.95.46 due to its principal, sole use in these specific machines.
Duty Rate — China → United States
38%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Provide OEM specifications confirming dielectric properties match 8501.64.0110 generator voltage classes (typically 3-15 kV)
• Include end-user statements from generator manufacturers verifying exclusive use in qualifying alternators
• Document thickness, thermal class (F/H), and pressboard composition to distinguish from generic electrical insulation