8546.20.00.30/Line Post Porcelain Insulators/Japan

Line Post Porcelain Insulators from Japan

Station post ceramic insulators for vertical mounting on utility poles, rated 15kV to 69kV for distribution substations. These provide cantilever strength for line support in high-voltage, low-frequency circuits. Specifically covered by HTS 8546.20.00.30 as line post insulators.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• - Submit cantilever strength ratings (e.g

• 10kN) and pollution class designation

• - Common issue: Unmarked insulators may be treated as unfinished ceramic goods

• - Include test reports showing compliance with IEEE Std C29.9 requirements