Line Post Porcelain Insulators
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If designed specifically for use with extra-high voltage (>230kV)
EHV suspension insulators have separate statistical reporting under different suffix
If when used in non-electrical applications like construction support
Articles of cement, concrete or artificial stone without electrical function classify here
If imported with integral transformer bushings
Bushings and insulators for transformers classify as transformer parts
Not sure which classification is right?
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Import Tips & Compliance
• - 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
Related Products under HTS 8546.20.00.30
Porcelain Suspension Insulators
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.
Pin-Type Porcelain Insulators
Ceramic pin-type insulators for supporting overhead distribution lines up to 33kV, featuring a single pin mounting design. These provide both insulation and mechanical attachment for crossarms in low-frequency systems. Meets HTS 8546.20.00.30 as pin-type ceramic insulators for high-voltage use.
69kV Suspension Disc Insulators
Porcelain disc suspension insulators rated at 69kV, used in strings for overhead transmission towers. Each cap-and-pin unit provides high mechanical strength and contamination resistance. Classified under 8546.20.00.30 for suspension-type ceramic high-voltage insulators.
Horizontal Line Post Insulators
Ceramic horizontal line post insulators for 46kV distribution, featuring trunnion mounting for crossarm applications. Designed for high mechanical load and electrical reliability in low-frequency systems. HTS 8546.20.00.30 covers these as line post ceramic insulators.
ANSI C29.2 Suspension Insulators
Standard porcelain suspension insulators conforming to ANSI C29.2 specifications for 115kV transmission lines. Fog-type design resists surface contamination and provides superior flashover protection. Specifically identified under HTS 8546.20.00.30 as suspension insulators.